I’ve found some good stuff through Spotify’s similar artists bit, or whatever it’s called.
When buying records I’ll often look to labels of stuff I like, they’ll often curate work based on some kind of taste. In fact you’ve just inspired me to go and have a look at what’s new in Ninja Tune land.
I haven’t found a really good approach to dig more mixes of the same vibe. I guess you just have to dig a lot and listen louds. I find and collect DJ mixes mainly on soundcloud, NTS radio and resident advisor.
Based on these two sets, I think you also might like these sets: