bands with prominent fanbases?

hey there! im someone whos into a lot of music that was big in the 2000s and recently ive been kinda sad because the fanbases are pretty much dead, and i seriously love interacting with fans of bands i like!! so i was wondering if any1 had any recommendations for bands that have a good fanbase (not like casual "oh i listen to *insert band* more like "omg look at this video of *insert band performing!!") i know that those are harder to come by nowadays bc tiktok has kinda messed up how we enjoy music and stuff but yeah. also dw abt the genre of the band bc @ this point im getting desperate 

tldr: sad emo kid needs band recommendations for bands that have fanbases that are cool