I would love to see your farms and know how they are working out for you!
This is my Village/Iron farm, its just classic, I take no credit for the design. Any advice on better ways to house and manage them, or anything about it would be nice. I use fence gates to separate/spread them out so they don't suffocate each other for now. Population is grown though trade. The hall is only 5 blocks wide so it is considered a "house" with glass floors in the corners to hopefully prevent hostile mobs spawning. I estimate it able to house 52 villagers, it could be expanded but the noise drives me crazy already.
I had no idea baby villagers could walk though fence gates! Oh well, its been fun.
I plan to pretty it up later with iron bars and make it look like a prison maybe.
The collection floor has a reverse waterfall trap (what I call it anyways) to take care of anybody under 3 blocks tall that happen to fall in.