I agree that angels and gourami are not a good mix in the same aquarium. Both fish are very territorial, the males particularly. I have found over my 20+ years that having any cichlid and any gourami in a community tank carries a certain degree of risk solely because they will spawn frequently, and being protective parents they do not appreciate any other fish in the tank. This can be managed, but sometimes not easily. I don't know how many times I have moved these fish from one tank to another just to prevent stressing out other quiet fish. So, one or the other; and even then, understand that at spawning you could have disagreements.