To weed down the large library to my "go to" presets, I've just been going through each synth and mark them as "favorites", so when I go into Analog Lab, I can browse only my favorites.
I know that the amount of presets in Analog Lab can be overwhelming, but going through each synth is a bit more manageable.
There are some synths that I will make a slight tweak to, then save it as a user preset with a unique title.
Between the user presets and the favorites, I can manage reasonably well.