Upgrade for sonoma

I currently have Hakintosh. Here are specifications

Intel I9 9900k Gigabyte Z390 Designer motherboard 32 Gb Corsair 3200 ram AMD Rx 580 Nitro 8GB Graphics Card Seagate Barracuda 4 TB 7200 Rpm HDD Current mac os Mohave

Wanna upgrade to Latest SONOMA on Samsung M.2 Nvme 4 500 GB SSD. Wanna upgrade Latest AMD Graphics card which will support MAC Os Sonoma.

Help me with this for upgrading AMD Graphics card which will support MAC Os Sonoma hakintosh.

Someone told me that 6600xt , 6800xtwill be good what's whe cost of that.