looking good! I see you have 'community' fish in there. I used to have lots of fish and tanks myself.
It looks like you still have some room in there, might I recommend a couple?
Pictus cats are awesome! not the cheapest catfish, but the are cool looking and don't get too big. They are best in a school of 3-5 small ones. Non hostile.
https://www.fishlore.com/aquariumfishforum/attachments/pictus2-jpg.65972/
I also had a Tire track Eel and a Peacock eel. These are both non fish eating eels. I fed them blood worms and ghost shrimp. They usually come out at nite, but live under the gravel during the day. Very cool to watch!