How can I repair this concrete floor?

I have this 3 inch thick concrete flooring in my kitchen and bathrooms, which is finished with some sort of tinted gloss (so it’s smooth with variations of color).

I have a patch that I had removed to get repaired, and I have a few cracks and things I’d like to gloss over. I don’t need a perfect color match, I’d just like to ideally match the smoothness factor.

Who could I talk to to even begin this?