1. Bichir generally aren't aggressive, but they'll eat anything that will fit in their mouths. They get to be about a foot and a half. If the cories are small enough to fit in the bichir's mouth you're not going to have cories for very long. Same goes for your German ram.
2. Jewel cichlids get aggressive to the point where they aren't recommended for community tanks. Plus they dig.
3. Mixing gourami generally isn't recommended and I don't know how well any of those species would do with angels.
4. If you're lucky, those shy African leaf fish will take frozen foods, but you may have to feed them live.
If you leave out the jewel cichlids, the gourami species and angels MIGHT get along, but you'd need to be prepared to give different species different housing and if you're trying to encourage spawning, all of them will be aggressive. That's 4 different species that will fight.