Took a chance on a few cheap cages on Amazon and I have a new favorite. Looks like picrel. https://www.amazon.com/dp/B0D63HQRTK
Only $16 but way better than the expensive Holy Trainer I've been using up to now. I've gone through like 10 cages by now and this is surprisingly the best I've found.
It's the most comfortable cage I've tried. Doesn't hurt even when I get hard, and no pain to the underside of my balls which has always been a problem for me in the past. Comfortable to sleep in too.
No need for hygiene unlocks. My Holy Trainer always got gross after a few days, but this one is nice and open. So I can stay locked perpetually. And I can use my dick right away if I take it off. Don't have to wash first.
I can just barely stimulate myself through the cage, just enough to tease but not cum which is perfect.
Biggest downside is it's not very aesthetic.

Also found an anti-pullout device that looks compatible with it, but it hasn't arrived yet. Not sure if it will work or if it will be too painful to bother with. If it works then I'll have finally reached the dream. An inescapable comfortable cage I can wear indefinitely.