I'm excited to be joining aquarium advice!

I'm not really an expert, but I do have a lot of knowledge and experience in gouramis and bettas, having held a lot. Currently, I have:
20-gallon tank with:
2 male dwarf gouramis
2 pygmy gouramis
5 dwarf corydoras
10-gallon tank with:
1 male betta (match)
2 apple snails
5-gallon tank with:
1 male betta (Marius)
1 apple snail