LOVELY someone finally posted a question like this!!
Anyways.
Angelfishes can go with a lot of fishes

just NEVER PUT BARBS in the tank.
Also, small angelfishes do get stressed out very easily and demand water changes every week.
They LOVE to eat plants especially amazon swords, and other plants they can eat.
Mainly they are a bit fin nippy themselves too. They can go with fishes like these listed below.
Dwarf Curviceps Cichlid
Australian Rainbow
Indian Glass fish
Plecostomus Cat fish
Rams
Red Eye Tetras
Paradise Gouramis
Blue Gouramis
Dwarf Gouramis
Black Skirt Tetra
Phantom Tetra
Albino Tetras
Silver Dollar
There are millions more that you can find out. Also, they can do well with a lot of fishes.
I have kept many different types of fishes together with angelfishes.
The only thing you should be careful with is that, angelfishes can get extremely aggressive if they have been residing in the tank for a long time, and then they will have a territory of themselves.
Especially when I had some newer fishes added into the tank, my angel was very aggressive.
They do like to be in with very dossile types of fishes.
Gouramis are great fishes too! but some of them can be aggressive sometimes.
They are also vegetarians and like to eat plants too, so if you have silver dollars too they are the king and queen of eating plants.
So I hope you have a lot of plants for your fishes to munch on, and a good light for the plants so then they can grow back pretty fast too.
Tetras are wonderful fishes. If you get a whole bunch of tetras in with angels when the angelfishes are still young, they will be able to grow up together..
Just try this out.
Get SOFT water AKA Reverse Osmosis water you can get at the water companies, or in water bottles.
Then wait for the tank to cycle
Put in a lot of gravel too

and then plants.
MAKE SURE YOU HAVE GOOD LIGHTING.
After that get some white tipped tetras
small congo tetras
cardinal tetras
and some neon tetras.
Then finally get some small Angels. Then you will have a GREAT tank compatibility.
You can also try many other combinations, but I do have different combinations too
Anyways If you need anything else like plants or lighting, I'll add a little more.
Anacharis - you will need strong lighting about 20 Watts and 6,700 - 10,000 Kelvin rating for them to successfully grow and keep up with the growth rate.
They are medium growing plants
Amazon swords - fast growing, you will need strong lighting for them to not go bad.
They have a fast growth rate and require strong lighting.
Java Ferns - very good type of plant and they are mainly eaten up by Cichlids, but any fish can eat them too
Green Hedge - wonderful for tank decor, they will need strong lighting and they have a medium to fast growth rate. They require strong light because photosynthesis has to be created in the tank.
co2 gas should be created to put in the tank, since co2 during photosynthesis is able to transform co2 into glucose which the plants will absorb.
Water Sprite - they are miraculous plants! and they look great in mid ground, also they require strong lighting too.
if you get plants with lots of color like not green color, but purple, red, green, blue, orange, blue/green then you will need stronger light.
TRUST ME.
NOTE: all of the plants I listed require better lighting than normal incandescent and normal fluorescent lighting. a rating of 6,000 - 10,000 k is recommended. 20 W and higher is better too
Bigger tanks will need bigger wattage.
Good Luck!