None of the leaders directly besides, arguably, Augustus—but the leader attributes trees (Diplomatic, Expansionist, Cultural, etc) have some abilities that do: "+1 Resource Capacity in Cities, or +2 Resource Capacity if you have 3 or fewer Cities" from the Economic tree for example, or "+15% Food and Happiness towards maintaining Specialists, or +30% if you have 3 or fewer Cities" in Expansionist, which also has the interesting later bonus of "+1 Specialist Limit in all Cities. -1 Settlement Limit."