Stocking Help/ideas Roma200

[cocomonkey24k]

Hello everyone.
I'm looking for some more ideas of what fish to keep in my roma 200.

I currently have
10 neon tetra
8 Guppies
2 Plecos
3 Silver shark
2 Pepper corys

I know the sharks will need to be rehomed once they grow a few more inches. They are currently 2" long.

Any advice will be much appreciated.

Thanks
Scott