One of my personal favorite radio apps comes from AccuRadio, which most people don't know about. It doesn't have a ton of reviews or stars on Google Play, but it's a pretty solid option we can totally recommend.
AccuRadio has over 900 channels that are completely free, unlimited skips, and tons of music waiting for you to discover. Most others only allow a few skips at a time, but they don't. That's what I love the most. Then, you can completely customize a radio station you do love to fit your style and taste.
We also like that it's easy to ban a specific song or artist from a station. That way you'll never hear that song you just can't stand.