GPU'S are out of the race for mining BTC, you need asics for that.
so how do I best utilize my gpu miners these days? I powered my rigs down a few months ago while I took a spiritual retreat. nobody has come up with a different algo for GPUs that has gained any traction?
For most the GPU days are dead. Just eat up to much electricity for what they bring. The asics have them to a few less algos.
Most likely you are better off selling cards then mining with them at this point. I parted mine out a while back. Do that and buy new miner or straight BTC.