It's basically raining indie games on Steam, all the time. You can't go a day without looking at the New Releases section of the Steam Store and seeing a list of indie games. They're everywhere! But if you've dipped your feet into the indie pool before, you know they can be a gamble without some research.
What's the best way to find indie games on Steam you'd like? Well, going to a game's Store page, checking out the similar titles at the bottom of the listing, and checking their reviews and discussion forums are technically the best way.
But man, that takes effort.
More often than not, I just buy my indie games based off recommendations from other similarly-minded individuals. Most of my friends also make their purchases based off word of mouth. You can make a bad purchase even when going off recommendations -- but that's what refunds are for. Sweet, sweet refunds.
There's a lot out there to wade through, and you mostly base your indie buys off word of mouth anyway. Don't lie, I know you do. Why not take a look at some of mu suggestions? You (probably) won't be disappointed. I think. Maybe.
Only one of these games is an early access title, and many have demos. What's there to lose? Aside from your future.