Idk ive never kept dwarf pikes.
It sounds to me like youre going for a south american grabbag tank. So my advice to you is try one of a lot of different cichlids. Add slowly, one at a time ya know, figure out what you like. But get whatever you want. Uaru, severums, guianacara(bandit cichlid), flags, keyholes, dwarf pikes....they will all get along fairly well. Thats the beauty of south american tanks. Just keep the big baddies out like festae, umbee, or pretty much any CA cichlids and youre fine.