Welcome to AA. Usually IMO Cichlids + Plants = destruction of plants
to AA!
I don't think you can do any African cichlids in that size of a tank except for kribs, jewels, African butterfly cichlids, or a colony of shellies. I believe mbuna, haps, peacock etc. get too big for that size tank.
Or if you were looking into South American cichlids thats an option too. Depends on what you want to do though.
Also, read this!
1. The (almost) Complete Guide and FAQ to Fishless Cycling
Welcome to AA. Usually IMO Cichlids + Plants = destruction of plants