Because I buy so much on Bandcamp, I get daily emails from any artists/labels that I have purchased before, which helps to take some of the sting out of it. The most effective way of doing it I find though is to subscribe to the YouTube channels that post new Bandcamp and vinyl only stuff. You get some that are Beatport releases as well, but it is massively weighted towards Bandcamp. Obviously using YouTube is a lot easier to search, listen and the algorithm tunes into the type of stuff you are looking for as well.
Can’t remember all of the YouTube channels off the top of my head but the ones I can think of are:
After Rave
Some uncertain sir
Ballacid