There is no answer to this. And even if someone had a crystal ball and could see the next big profit coin, they wouldn't tell you. Mining for big profit is dead until the next coin comes around. Don't forget, Ethereum has been in development for years and only just became profitable in the last eight months. For the next year or two or more, you'll just be scraping pennies from the crypto floor.
Actually, it's been profitable for longer than that because the difficulty used to be much lower. When I started mining Ethereum in March of 2016 (16 months ago), I was making ~$7 per day with two R9 290x cards and a few months later, I was making ~$10 a day for a little while. Now I mine it with four R9 290x cards and I make ~$7 per day.