Best carry-on sized backpacks for hiking/camping with gear

I'm posting this in search of the best carry on sized backpacks for minimalist camping for my husband. As it's his birthday, money is not a factor. I've read about several good ones through searching old threads, but most of those had specifications like "under $200" or "must have x criteria" or were asking for recommendations for travel where they'd be staying in hostels and wouldn't need camping gear. I'm just wondering is there are like a top 3 that stand out against the others for camping, and your experience with them if you own them. Thanks in advance!

Looking through YouTube videos it's difficult to determine which are actually good vs the ones that are popular because influencers say so. My husband are both new to primitive camping but are practicing skills everyday to prepare for our first trip. We'd love to hear from people with experience with these packs. Btw, I''m looking for a backpack for him, but also wouldn't mind recommendations for me as a female (mine will have to be lighter than his). That may be a better question for heronebag though.