I was thinking of creating an anonymous ticketmaster account using public wifi since they block VPNs and just have them email me updates, but they required a phone number for the sign up so I scrapped that idea.
Edit: I decided to sign up for songkick as someone else here mentioned. It seems pretty polished and its entire purpose is concert discovery. It never asked for any unnecessary extra information either such as first and last name and phone number, just an email and a password and boom.
Not sure about your area but where I'm at a ton of smaller venues are using the dice.fm app for ticketing, it also allows users to follow venues/bands for upcoming shows.
Bandsintown also tracks bands on tour & could be useful though I get the feeling it's better for tracking bigger bands/artists.
Slightly old school but also keep in mind lots of venues/promoters still have email lists you can subscribe to for news/updates.
Beyond that I still keep an eye on Facebook/Instagram for keeping track of those things (I know that's not the answer you want sorry), a lot of times that's what the bands/artists are actually posting to.
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