The list is by no means inclusive, but I think the following would be first ballot Hall of Fame.
First, the also rans. These may eventually get in, but not first ballot. Blackball, Ghoti Hook, and My Friend Stephanie. Rock, Alternative and Ska.
The Class of 2021 is 6 Strong. We Start with a little house cleaning, and when you do, it's best to use Bleach. A punk alternative band that made it's bones by appearing on the Jenny Jones Show and performing Super Good Feeling. The Post Punk scene wasn't very big, but Bleach fans were loyal. They burned out quickly as their final concert was in 2004. I saw them 3 times in 1997 with Seven Day Jesus, in 1999 with Joy Electric and Miss Angie, and as part of Soulfest in 2004. The Cause of Death was a tired heart caused by the death of friends in the Gulf War. We have been waiting for a reunion since.
Seven Day Jesus came on to the scene at the same time, and actually toured together for a time. They were more straight up rock than Bleach an so got overwhelmed in the crowd. A. Point of trivia is that Bass player Russ Fox also played with Bleach
The Ska Scene blew up in 1996. When a genre takes off it seems like the band flow to it like mice to the Pied Piper. The most successful of them was the Orange County Supertones.
Punk had the Ramones, and the Christian World's Ramones were called The Huntington's. If you like your songs under 2 minutes, this is the band for you.
Starting from Hard Rock and mellowing to Emo, Stavesacre. Their latest release was in 2017 after they had taken a 7 year hiatus.
And finally, the most successful of them all, Skillet. I still consider their debut almost unlistenable, though not as bad as ZoeGirl. The sole constant in a quarter century, Bass Guitar/Lead Singer John Cooper. His wife Korey joined in 2000 as keyboardist/guitar
R/programming/only adult in The room and the Band has been invincible ever since. Based on recent events, I expect they will be around for a long time to come.
There you have it, the Class of 2021. Until next time, I am Awaiting Your Reply.