You can try this website: www.whattomine.com I'll suggest doing a benchmark of all the algorithms to get their respective hashrates, put the numbers on the website and you can get the most profitable coin to mine.
How do u do a benchmark?
You don't actually need to, just enter the number of units you have of a particular GPU in the website and it will input the value of the hashrate of a particular algorithm by itself. Then you can run it and check for the most profitable coin.