More mountain types

I would like for mountain types to exist to make a more realistic world’s/speed up the process of making them.

some suggestions are,

1 With mountains that already exist add more unique looking/formed mountains.

2 Snow-covered mountains for already and potentially upcoming mountains.

3 New mountain colors, yellow, light grey, dark grey, white, orange, medium brown, a dark blueish gray, and a dark blueish black color just to name a few.

5 Forested and grassy mountain variants (and others if anyone can think of more).

6 Something else that could be considered is multicolored mountains or some mystical mountain types.