The group that should be avoided with lions include, most Eels, Frogfish and other Scorpion fish, Large Angelfish, Puffers and most Triggers (exception is Blue throats, crosshatch, pinktail and a few others).
These are known to prey on, harass or nip at lions.
I personally have a angel with my volitan so I say angels can go with them but other people have different opinons.
What works for some does not work for all. Adult angels are known for nipping fins, it will depend on the fish and environment. Fish can change, what works with juveniles may not work with maturity.
Kaye