I think I know the outcome of this poll.
I've done some work on which units should be rehomed. There were no issues on not being able to support the units or settlers but I do think we need to rehome a bunch of units to let them be supported by the city they are in. Suggested rehomings are in bold below:
(just to clarify: when I say rehome phalanx I mean: rehome phalanx to the city it is in at the moment)
Regia Civitas Size: 6 Happy/content/angry: 3/2/1
Food: 12 (surplus: 1)
Production: 8 Support: 0
Supported: phalanx, legion (Elysium), archers
Present: phalanx (Little Nemo), archers, phalanx
rehome phalanx
Elysium Size: 4 Happy/content/angry: 1/3/0
Food: 8 (surplus: 2) grows in 4 turns
Production: 5 Support: 0
Supported: phalanx, legion (near Hipsheim)
Present: knights (NONE), phalanx, legion (Regia Civitas)
rehome legion
legion near Hipsheim, rehome in Hipsheim
Thunderfalls Size: 4 Happy/content/angry: 1/2/1
Food: 9 (surplus: 2)
Production: 4 Support: 0
Supported: warriors, settlers (near Hipsheim), crusaders (near Banana Bay)
Present: warriors
Civvium Size: 4 Happy/content/angry: 1/2/1
Food: 8 (surplus: 2) grows in 4 turns
Production: 7 Support: 0
Supported: warriors (2), trireme (near Bactra)
Present: warriors (2)
Bedfont Lakes Size: 2 Happy/content/angry: 1/0/1
Food: 4 (surplus: 0)
Production: 5 Support: 0
Supported: -
Present: -
Little Nemo Size: 2 Happy/content/angry: 1/0/1
Food: 5 (surplus: 2)
Production: 3 Support: 0
Supported: warriors (Khorsabad), phalanx (Regia Civitas), settlers (near Little Nemo)
Present: -
Building: settlers (14 turns)
Gabba Gabba Size: 2 Happy/content/angry: 1/0/1
Food: 4 (surplus: 0)
Production: 5 Support: 0
Supported: warriors (near Bactra)
Present: -
Beast Flats Size: 2 Happy/content/angry: 1/1/0
Food: 4 (surplus: 0)
Production: 7 Support: 0
Supported: archers, trireme (near Bactra)
Present: archers
Penguin Flats Size: 3 Happy/content/angry: 2/0/0
Food: 6 (surplus: 1)
Production: 3 Support: 0
Supported: phalanx, warriors (near Civvium - on the pole)
Present: phalanx
Building: settlers (8 turns)
Khorsabad Size: 1 Happy/content/angry: 0/0/0
Food: 3 (surplus: 1)
Production: 1 Support: 0
Supported: settlers (founding a city in 2)
Present: warriors (Little Nemo)
Building: settlers (9 turns)
rehome warriors in Khors south
Khors. south
Food: 2 (surplus: 4)
Production: 2 Support: 0
Supported: -
Present: -
Building: archers (13 turns)
Bactra
Food: 2 (surplus: 3) grows in 1 turn
Production: 2 Support: 0
Supported: phalanx
Present: phalanx
Eboracum Size: 3 Happy/content/angry: 1/2/0
Food: 7 (surplus: 1)
Production: 5 Support: 0 (Waste: 1)
Supported: archers, trireme (near Banana Bay), settlers (near York Downs)
Present: archers, warriors (Neuma)
New Octavia Size: 2 Happy/content/angry: 1/1/0
Food: 5 (surplus: 3) grows in 5 turns
Production: 3 Support: 0
Supported: settlers (near New Octavia)
Present: Legion (Mordhiemia)
Building: settlers (11 turns)
rehome legion
Mordhiemia Size: 3 Happy/content/angry: 1/2/0
Food: 6 (surplus: 3) grows in 3 turns
Production: 4 Support: 0
Supported: phalanx, legion (New Octavia)
Present: phalanx
Building: settlers (1 turns)
Marl Downs Size: 4 Happy/content/angry: 1/2/1
Food: 8 (surplus: 1)
Production: 4 Support: 1
Supported: phalanx, archers (York Downs), trireme (near York Downs), legion (near Mordhiemia)
Present: legion (Neuma), phalanx
Building: settlers (10 turns)
rehome legion
York Downs Size: 2 Happy/content/angry: 1/1/0
Food: 4 (surplus: 3)
Production: 3 Support: 0
Supported: -
Present: archers (Marl Downs)
Building: settlers (10 turns)
rehome archers
Neuma Size: 2 Happy/content/angry: 1/0/1
Food: 5 (surplus: 1)
Production: 3 Support: 0
Supported: warriors (Eboracum), legion (Marl Downs), settlers (near Castle Jayne)
Present: -
Castle Jayne Size: 3 Happy/content/angry: 1/2/0
Food: 7 (surplus: 3) grows in 3 turns
Production: 4 Support: 0
Supported: phalanx, archers (The Udal), settlers (near Elysium)
Present: phalanx
Building: settlers (8 turns)
Legendary City Size: 4 Happy/content/angry: 1/2/1
Food: 8 (surplus: 2)
Production: 8 Support: 0 (Waste: 1)
Supported: phalanx, archers (Cymru Straits), trireme (near Cadiz)
Present: phalanx, archers (Monk's Town)
rehome archers
Monk's Towne Size: 3 Happy/content/angry: 1/1/1
Food: 6 (surplus: 3) grows in 3 turns
Production: 4 Support: 0
Supported: archers (Legendary City)
Present: -
Building: settlers (2 turns)
Dellham Size: 3 Happy/content/angry: 1/2/0
Food: 7 (surplus: 2)
Production: 6 Support: 1
Supported: legion (near Banana Bay - war unit), archers (Cymru Straits), archers, settlers (near Dellham)
Present: archers
Building: catapult (6 turns)
Fort Anarchy Size: 2 Happy/content/angry: 1/1/0
Food: 4 (surplus: 1)
Production: 5 Support: 0 (Waste: 1)
Supported: phalanx (Banana Bay), phalanx
Present: phalanx
Routskilde Size: 2 Happy/content/angry: 1/1/0
Food: 4 (surplus: 3) grows in 5 turns
Production: 4 Support: 0 (Waste: 1)
Supported: crusaders (Banana Bay - war unit)
Present: crusaders (NONE)
Reneaux Size: 4 Happy/content/angry: 1/2/1
Food: 9 (surplus: 3)
Production: 6 Support: 1
Supported: knights (near Hladir - war unit), warriors, settlers (near Fort Anarchy), phalanx
Present: phalanx, warriors
Banana Bay Size: 1 Happy/content/angry: 1/0/0
Food: 4 (surplus: 1)
Production: 2 Support: 0
Supported: archers, settlers (near Reneax and Banana Bay)
Present: crusaders (Routskilde - war unit), phalanx (Fort Anarchy - to Viking Harbor), archers
Building: catapult (20 turns)
The Udal Size: 1 Happy/content/angry: 1/0/0
Food: 3 (surplus: 3) grows in 1 turn)
Production: 2 Support: 0
Supported: trireme (near Routskilde), settlers
Present: archers (Castle Jayne), settlers
Building: settlers (20 turns)
rehome archers after growth next turn
Hipsheim Size: 1 Happy/content/angry: 1/0/0
Food: 2 (surplus: 2)
Production: 2 Support: 0
Supported: -
Present: -
Cymru Straits Size: 2 Happy/content/angry: 1/1/0
Food: 4 (surplus: 3)
Production: 3 Support: 0
Supported: -
Present: archers (Dellham and Legendary City)
Building: trireme (1 turns)
rehome both archers
Lindow Moss Size: 1 Happy/content/angry: 1/0/0
Food: 3 (surplus: 2)
Production: 3 Support: 0
Supported: settlers (near Lindow Moss)
Present: archers (Uppsala)
Building: settlers (14 turns)
rehome archers
Uppsala Size: 3 Happy/content/angry: 2/0/0
Food: 6 (surplus: 0)
Production: 5 Support: 0
Supported: archers (Lindow Moss), legion, crusaders (Viborg - war unit)
Present: legion
Viborg Size: 3 Happy/content/angry: 1/2/0
Food: 7 (surplus: 2)
Production: 3 Support: 0
Supported: warriors, legion, settlers (near Uppsala)
Present: crusaders (Uppsala - war unit), warriors, legion
Cadiz Size: 2
Food: 4 (surplus: 3)
Production: 4 Support: 0
Supported: pikemen
Present: pikemen