Stocking a 36g Freshwater Tropical Tank

If you end up with a pair of angelfish they can be pretty aggressive, if you just keep a single one they're fairly peaceful, dwarf gourami's can be aggressive towards each other, I've never had much luck with them they always end up dead with in a few months from dwarf gourami disease.

I'd consider something a long the lines of 1 angel, 2 rams, your cories, a school of some type of medium size tetra's of your choice. That leaves room for a couple other misc fish maybe a few danios, that would give you activity at all levels of the tank. You could also break your schooling group into 2 smaller schools.

If you want a "variety" of peaceful fish as you mention, I would avoid larger species like angels. A single angelfish is not really the best (it obviously can work, not suggesting otherwise) because this is naturally a shoaling fish that lives in groups, but that means a 4-foot tank at minimum. I prefer keeping fish "naturally" so they can behave naturally.

Gourami also I would avoid, though the Honey would be a better choice than the Dwarf for health reasons as mentioned by previous poster. A group of three would work. And I would add more corys; a group of 5-6 is best, of one species, or you can have mixed species. The more the better for them and you.

What are your tap water parameters, meaning hardness (GH) and pH? There are many suitable fish for this tank, but some have more specific needs when it comes to water so this is worth knowing up front.

Byron.

I would expect Sparkling Gourami would be a good option, if you want small gourami.

Personally in my 36, I've had Corydoras Habrosus, Furcata Rainbows, Chili Rasboras and Red cherry shrimp all living together without any problems and they were all there in decent numbers.

Your cories would likely do better in a group of 6+, but it really depends on what type they are in the first place.