As far as hoof boots go, if you can’t find any to fit your horse(s) that might be a red flag that the trim is not where it should be.
Hoof boots in general are built to fit a horse with a good barefoot trim. Short toes, heels back where they belong, no flares. Heels run forward and flared walls will interfere with fit.
I’ve used Renegades (wore out 3 pair) and am currently using Scoot Boots on the front, just started this past month. You do need to get the correct sizing.
Hoof boots have really improved over the past decade. Even the older brands have new improved models so a modern Easy Boot is not the same thing as one from 20 years ago.
They are more economical because a pair of boots runs you about $200 and can last a normal horse years (my mare ate through her Renegade toes very fast but the Scoots seem to be holding up better for her). Then you just get a trim that you can even maintain yourself at home.
I don’t think I would jump heights in hoof boots but other than that they’ve been good for work at all speeds.
The horses I see daily are barefoot with or without boots, or shod, usually hot shod these days.
I have only known one horse that “needed” glueons. He was a wonderful old boy who was traiming GP dressage when he broke a coffin bone in one front foot. Because of that his care team thought he needed front shoes even in retirement to support his bone.
But he had persistent WLD or something meaning nails broke his foot apart. I guess they couldn’t resection without compromising hoof stability? Anyhow he was getting various things glued to his fronts including aluminum shoes?
They recognized that going barefoot would have been better for hoof quality but the primary worry was supporting the healed coffin bone.
I wasn’t in the loop on his care details, but it was a spare no expense beloved horse situation, where the previous owner took him back when he broke down.
Oh, just also remembered another couple horses rehabbing from founder getting glueon shoes from our vet who is also a trained farrier, barefoot specialist, and a fan of Pete Ramey. Vet and I both went to see a Pete Ramey clinic last year.
Pete Ramey uses glueons therapeutically if needed, but just recommends hoof boots for trail riding healthy horses that need a little extra help.
So “needing glueons” would be a red flag because honestly people tend not to go there except to solve fairly serious problems.
The exception seems to be the endurance riders that train barefoot or in boots, but do glueons specifically for their races, and take them off after.