I figure this is a good way to get the conversation going.
We currently have one community tank with a dwarf gourami, corydoras, neon tetras, a small colony of cherry shrimp, an assassin snail, and a plague of ramshorn snails that hitched a ride on some water lettuce we bought a few years ago.
I have a 29 gallon with a mustard gas Betta, 15 Cardinal Tetras, 10 gold lazer Corydoras, 2 Amano shrimp, ±20 blue velvet shrimp and a lot of Anubias and Ludwigia. It’s my first tank and it’s only a few months old so I still struggle with keeping the algae at bay but it’s getting better.