I might have spent quite a few hours browsing through loads of IRs when I initially bought some packs, but I know what I like, and used that experience to hone in on the ones that might work for me. When I found one it went in a separate folder, and I’ve ended up with a handful where I know them, I understand what they do and what they’re for, and it keeps things easy.
It definitely helps that I was able to base my initial searching on what I knew worked for me in the real world - I’ve gigged and recorded through so many speaker cabs, tried so many speakers in them, that I know I like, say, Celestion Blues more than greenbacks, oversized closed back 2x12s more than 4x12s, V30s more than T75s, etc.
So I’ve ended up with a little bunch of IRs that represent what I’d choose to play+record through if that technology didn’t exist.
A Celestion alnico silver 2x12 cab miked with a 121
The same, but Alnico Blues for a little neater, less ragged midrange
An oversized Bognor 2x12 with Vintage 30s miked with a 414 for thicker, heavier stuff
A 1x12 with a Bad Cat ceramic speaker for when I want a tighter sound with bigger mids
And for each one, I’ll have 2 or 3 options - one with the mic closer to the center of the speaker, and another with it further out, so I can change how bright+ punchy or mellow the IR is to taste.
Having done that, I pretty much forget about the other 1000 or so IR files, because worrying about one of them being better than what I chose isn’t going to make my music better.