i recommend an aio plus some copper heatsinks/thermal pads. you may have to use zip ties to keep the sinks in place . . .
also a dedicated fan or 2. one at the rear of the card and another at the side door panel.
OR this . . .
For now I just need the cheapest cooler I can find then later I can go with something good I would prefer air since I don't have my pc in a case atm and have nowhere to mount the rad except a cardboard box