Reposting this again from earlier, my thoughts on AMD partners
Having used AMD cards for a few generations now i personally rate them thus
Sapphire - #1 Partner, they are like the EVGA of AMD Cards (minus the stepup program) Their cards are generally the best built, Dual Bios, Awesome coolers, nice aesthetics and decently OC'd, there are rumors of a Toxic edition which is traditionally Sapphires highest end cards (alongside Vapor-X)
Powercolor - I am running a Powercolor Red Devil, nice looking, really good overclock on it out of the box and the cooler is second to none, another really good partner, no dual bios though.
XFX - Can be a bit hit and miss, id steer clear of their cheaper stuff as the cooling isnt always that great and they can be loud.
Asrock - New to the party, ive not read brilliant things about them, but ive not used them personally except for my X570 Taichi which has been superb
HIS - Rarely we see a HIS Card, they are often marmite designs you either love or hate, they generally perform ok though for the money.
Gigabyte - Pretty garbage tier really, i dont think they bother too much with Radeon cards, or it seems they dont, coolers are often poorly designed.
MSI - Utter garbage company, had 2 x 290X Gaming X cards and returned them as they were not fit for purpose, backplates got stupidly hot, plus MSI ethics leave a lot to be desired.
Asus - Tripe for AMD cards, utter tripe, no one can forget them prizing an Nvidia cooler onto an AMD card, and you have to pay the glorious Asus tax for that privilege, id steer clear of their stuff unless you are a ROG Drone and absolutely must have their dross ;l)