Anyone else register a business to sponsor your own visa?

Hello. I'm moving to Chengdu soon and preparing to go through the business registration process to sponsor a work visa for myself. I'm curious if anyone else has gone through this and has any advice, or even better, any solid recommendations on service providers that are reasonably affordable.

I'm also curious if anyone has information or experience with living in a mixed-used residential/business complex that can serve as both your residence and your business registration address. Any thoughts people can provide would be very helpful, thank you!