Conquered Cites with ultimate corruption i.e. 1 gold/shield.
This is my plan for captured cities, assuming FP already built elsewhere and map/city liimit reached.
If the city won't produce anything due to so much unhappiness, common in 1.17f given the AI propensity to rush/draft, then produce a worker asap, and resettle the city spot if deired.
For cities that are not totally unhappy;
1) Remove Resistance
2) Sell any captured improvements except maybe barracks/aquaduct/marketplace depends on location.
3) Rush temple for the border expansion
4) Produce Worker every 10 turns
5) Maximise food production and grow to size 6 (or 12 if aquaduct/river) either by natural growth or by worker influx
6) Set food production to grow every 10 turns
7) Turn the rest into specialists
7) Keep streaming workers for the rest of time
If you don't have the money to rush all those temples then take troops produced in your core cities and disband them in the captured ones. Sure this reduces your army but by the time you hit the corruption limits, your army should be large enough for most purposes. Arty is good for this, 20 shields each, so two arty and say 70 gold gives a temple. And obviously don't do every city at once, do the ones that consolidate you territory best first.
You can NEVER have enough workers especially if you use automated pollution clean-up, the automated routines are very inefficient in worker allocation. Even if you really do have to many wotkers sell some (back) to rival civ's, join cities for the poulation points or just use them as border guards.
I do this last one a lot, I'll often wan't to war against one neighbour while keeping peace with another. But the AI will insist on trying to cross my territory, especially if he has an enemy on the other side. Oh yes, they probably leave when asked, but like the proverbial bad pennt, they'' keep turning up. And why must I ask every turn.