Hey I believe there should be a separate run category for glitchless in SM64.

I would suggest you look at the games forum first, some have already requested it. Imo 70 & 120 star is already Glitchless, everything else is impossible to do glitchless.

70 star is glitchless, AFAIK 120 is not.

Glitchless would mean no BLJ allowed, which I imagine would change the early route a bit, for 120 at least, I'm not familiar with the 70 route. Also getting up TTM would be a bit more of a bother

No BLJ or Mips Clip in 70 Star. I'm not especially familiar with what all other tech there is in the game. I think 70 star is meant to be, in essence, "any% No Major Glitches"