Mollys and swordtails.

I have two or 3 29 gallon takes with filters. im not sure where youre at but they are quality tanks to save you from petshop cost i am sure i can make you a better deal if youre local.

That's a nice offer mm_fanatic976 but this one is free I have been blessed with fish loving friends who are constantly upgrading their tanks and I usually take any tank they don't want lol.

In my 29 Gallon tank I have:
5 Zebra Danios
6 Neon Tetra's
4 Black Phantom Tetra's
4 Albino Cory's
3 male Guppies
4 mystery snails.

I have been thinking of 2 dwarf gourami's will be my last additions.

I would go with some plants, water sprite and Heteranthera zosterifolia. Possibly some small val too.
As for fish, get some ottos for algea control and a few corrys. I would get some black skirted tetras and a huge school of neons. I always like the look of a large school of one kind of fish rather than a bunch of random types of fish.

you could try a bristle nose pleco or some pygmy corys.Be sure to get 4-6 corys as they are very social.