Banjo cats if you have a sand or small (2-3mm) gravel since they like to bury themselves. Bumblebee cats, spotted rafael. I wouldn't recommend the stripped as they can get quite large. Hoplo might be a little big too. Flagtail porthole only get 4-5in best in a trio or more.
Not my fish pictured. I only do the maintenance. 65g.View attachment 1456757View attachment 1456755
Agree a small group of Banjo can live in a 30 gallon for life but you won't see them often lol.