Maybe a pair of small harem of warm water Apistos? Also, small group of banjo catsare neat. Small central American gobies are fun. Hatchets if floating plants and good lid coverage.
I like angels but not so much with my discus community since a pair will rule tank once established. I like growing out a few small angels for my wife's classroom tank though. Rams are fun but gateway drug to true Apistos. Apistos can go nuts on discus with spawn but more like fleas to a dog compared to angels with spawn. I have 2 raphaels in my tank now too with no prob... Very fat but leave discus alone. My lemons I love and my BNs need to stop reproducing.