I realize that the AI tends to prioritize Alphabet, but remember that we cannot trade without that tech.
As long as the AI has Alphabet, you can trade techs with them.
I have played many games on Monarch now without beelining for Alphabet...sometimes, I haven't learned Alphabet until I get Currency or Construction first, lol. Alphabet does allow you to buils Spies though, which you can use to defend your cities against other spies or to obviously wreak havoc with your enemies.
From this and other threads, I would think that these are the main tech path choices: (Archery -> Mysticism first are a given)
1) Pottery -> IW
2) Pottery -> CoL
3) Straight to CoL
4) Pottery -> IW -> CoL
5) Pottery -> IW -> Math -> Construction
6) Pottery -> Math -> Construction
7) Pottery -> CoL -> Math -> Currency
8) Pottery -> Math -> Currency
7) Pottery -> IW -> Sailing
8) Pottery -> Sailing
9) Pottery -> Sailing -> Meditation
10) Pottery -> Meditation
11) Pottery -> Sailing -> Meditation -> CoL
12) Pottery -> CoL -> Meditation
13) Pottery -> Sailing -> IW
14) Pottery -> Sailing -> CoL
15) Pottery -> Sailing -> Math -> Currency -> CoL
16) Pottery -> Sailing -> CoL -> Math -> Currency
Now, most immediate choice is Pottery or CoL or IW or Meditation or Sailing next. Run that poll imediately.