It really depends on what you like !
We all could suggest fish for you but if you dont like any of the suggestions , its a waste of time for us to start listing a great stock for you .
What fish do you like ?
Do you want a community of small fish ? ( Like ~ Tetras , Barbs , Guppys , Cory , Ect ) .
Or a community of larger fish ? ( like ~ Oscars , Severums , Acara , Jack Dempsy , Ect ) .
Is it SA/ CA Cichlids you like/ want ?
Or African , Or Some sort of Oddball type fish ?
Do you want Fresh or Saltwater ?
Do you want Plants in the tank ?
The List of questions could go on but if you please could answer these few for now it would help us all a big amount .
What i probily would do is a ~ Semi planted with a few rocks and a small amount of wood with fish like - Clown Pleco , Cory , Twig Catfish , Danio , Tetra , Hachet Fish , Barbs , Rainbow fish and then maybe a little more later on .
OR
A African Community , with the tank full of rocks .