If your meaning that you want to keep an angel in with a parrot cichlid, that could be okay.
The only thing is that they have to be used to each other. Like if they were housed in the same tank together or if they were introduced to the tank at the same time then yeah your friend or you would be in good shape

I was in a pet store here in Japan not too long ago, and they sold angelfishes and parrot cichlids together. They didn't kill each other like many other people would say that they would :P
I haven't kept angels and parrots together for a long time. So I don't have a lot of experience, but my friend has kept them together for years. not much of a new experience for him
