I think River and Damus and Casa have done a great job of creating a sticky brand for me. What Bitcoin Did is a great brand too. TFTC as well. There are lots of them but those come to mind. Of all personalities, I think Jimmy Song, Lopp, and Lyn have the strongest personal brands.
The main thing is I know what these "brands" stand for, they're consistent, they aren't deeply conflicted in a variety of opaque ventures, and their leaders aren't noisy af about all kinds of tangentially related nonsense nor trying to appeal to everyone (and hide who they are). ie Their identity is strong.
I see a lot of brand potential in:
  • Fountain
    • I associate them with one too many things: Podcasts x Social x Bitcoin
    • It seems like you can cross two things at most and still reliably puncture a psyche
  • Mutiny
    • Still a young company, but they could be seen as the cypherpunks of lightning through more direct treatment
  • Breez
    • Their brand is strong to me whatever lane they choose, but they are changing lanes right now