I'm pretty sure the best thing you can mine right now is Sparks on bsod.pw. I have been getting about 1 coin per day per 1080 for close to $20 per card with current btc prices.
I have 2 1080 and 1 1080ti... Would that be 3 coins per day?? :|
Sorry meant per 1080TI, updated my post. Guess you would get a little bit over 2 coins. I stopped mining it 2 days though so not sure how much the difficulty has changed.