well the bichir is now 100% confirmed so ehhhh maybe something smaller
Then I would go with synodontis... I keep a large Notatus and decorus with my 2 bichirs... If you want to spend the extra money I really think the dwarf giraffe cat is a species that should be more available than is giant cousin.. I had one I bought for $45 + shipping from wetspot and I absolutely loved him but I lost him due to mini cycle... A group would be awesome though.... I would try to stay away from anything crazy active imo so your bichirs still have a chance to get food... My synos spend a lot of their time under driftwood but they come out often enough that them hiding doesn't bother me and my bichirs get to food 90% of the time