I think that if you're after long term profit mining nicehash still has the bst profitability for AMD cards but scouting for profitable coins outside of that ain't easy. ZCash has been consistently profitable for AMD, you could also try eth/decred or whatever daggerhashimoto coin can also be dualmined with decred. The case with those has been that they're also consistently more profitable. Check out the ETH+ section of
http://whattomine.com. At least of as long as ETH remains available to mine this could be worth looking at.