What brokers work with new authorities?

Hey all. Im kinda relatively-new to the trucking industry. Got my CDL-A Aug2023, tried one-week apiece for a couple different companies, then spent @ 1.5yrs chauffeuring older-family members; Now looking to get back into trucking, and thinking of just starting my own trucking company (including getting my own new authority) instead of going with a mega-carrier or another illegit company.
I'm curious what brokers work with new-authorities. Ive heard TQL & CH Robinson do, but heard only bad things about these two. Im not yet sure what type of trailer i want to go with; DryVan/Reefer, Flatbed/flatbed-variant, or Intermodel (i already have TWIC, live close enough to a major seaport, and new Intermodel chassis'/trailers are cheaper than other used flatbed/reefer/dryvan trailers within like 500miles of my home).
Thank you very much for your help! Greatly appreciated