Tank Additions

Hello everyone! I'm happy to announce that my very first tank just finished cycling the other day. I have a school of 10 neon tetras (rather beginner of me, I know) and 1 pleco. Just looking for any suggestions on what to add next. There's plenty of room in my 29 gal tank for more fish. Maybe another pleco and two angel fish? Is that suitable or should only one pleco roam a medium sized tank? If you think I could fit more than another 3 fish I'm very open to that as well. Thanks for reading this amigos.