Anyone have any ideas for a bull bar or bumper that doesn’t require cutting etc on a 2021 Limited or Nightshade? Pictures or links would be awesome! Thanks

If you go to ebay or amazon and search "4runner bull bar no cutting" you'll find some options. You could probably use similar search terms on here and find some posts about it.
I think you haven't had much response because most people don't care for bull bars, but it's your vehicle. Good luck!

many will require you to cut the black trim at the bottom of the front bumper. you can just remove this piece if you want. that black trim extends the entire width of the front bumper. having a bracket come down under the trim and then back up to mount will not only look bad but will take ground clearance and create a weak point due to the shape of the mount. this is how my 2012 limited is I don't know if they changed the front trim in later years for the limited or nightshade. I don't think SR5 and TRD models have this trim piece

bull bars aren't cheap. westin has some and are probably $500+ and really cheap ones finish will look like crap in no time. best use of $ IMO is something like the c4 low pro and I think victory makes them. definitely need trimming for these though.