OP: I think the real answer is not AI editing but being your own worst critic and culling your images
Do you need 300 images from one trip?

Once you eliminate any images with obvious flaws (wrong exposure, wrong focus, etc...)
If making a photobook how many images do you need for that? That could give you a target.
Otherwise identify a top 25 or top 10 from a trip and then edit those. Edit a couple of alternates as well in case the edit does not go as planned or you change your ranking post editing.
I can usually cull quickly from the unedited thumbnails in LR ; and sometimes the smaller view makes a quick analysis of compositional quality easer as odd as that sounds.