>>7819424There's a ton. Nearly every single MPM and Studio series release so far has been KO'd in some manner and for the most part they're superior and sometimes cheaper to the official. They range from straight KOs, upscaled KOs, stupid lavish repaints, improved KOs or a mix of all above. As to a list, not really. The best you can do is just browse the KO section or '4th party" sections of websites.
You can mix and match, but with the oversized releases YMMV with scale. Pic related is an upcoming slightly oversized improved MPM Ironhide from Black Apple. They already have a prime out but he's really hard to find.
Some companies:
Black Mamba
Black Apple/ Wei Jiang
Legendary Toys
BMB
Dream Factory
Honey Badger
