Sharking Japanese Which Fish Would Go Well With 2 Angel Fish, A Japanese Fighter , Red Tailes Black Shark And A Few More In 180L?

Which fish would go well with 2 angel fish, a japanese fighter , red tailes black shark and a few more in 180L? - sharking japanese

I bought a tank of 180 liters and have a Japanese fighting fish, angel fish, 2 red-tailed black shark and a sucker fish, other fish that go in my 180-gallon tank? has coves of rock and some coral reefs and artificial plants, but what could there other fish?