I have a smattering of towels from autogeek, but most of the MF I get from chemical guys. Pretty good price for the quality. I have some of the monsters, fluffer supremes and some the "yellow" ones, I forget which.
Can't recommend cotton towels, but they also have some "micro-cotton" towels on there.
For the most part, I just use costco mf for the interior and door jambs. Some linting, but goes away after washing