I recommend you to use some 3rd party software where you can benchmark your cards with any different algos and you will see all profit per day.

Like awesomeminer you can do benchmarking using their software to all algo available in their list.

After that check your statistics provider and check both whattomine and coinscalculators now you can check the coins tab and you will see all coins that your GPU can mine just click the profit so that it will sort from most profitable to low profitability coins.