Angelicus Botia and other loaches/botias?

Hey everyone i had a question. I have an angelicus botia in a 50 gallon tank and I was thinking of getting like 2 more. I wanted to know know if i should get more angelicus botias or if I could get yoyo loaches or any other similar botias/loaches. I have read that they like to be in groups and i was just wondering if i could mix and match or if i should just stay with the same species. (I have other fish in my tank, not just the botia. Thought i should just say that lol)