CC1: Creature Compendium from Lulu. You can also get the PDF free from DTRPG.
https://www.lulu.com/en/us/shop/richard-leblanc/old-school-adventurestm-accessor...
Basic Fantasy also has a large bestiary spread across the core book and both field guides. Due to the quantity across these 3 books, there is also an index to download from their page. You can order physical copies from either Amazon or Lulu, with the exception of Field Guide Volume 2. Do note that the Field Guide Volume 1 print release is much more behind the pdf.
https://basicfantasy.org/downloads.html
For all of these, you could also print the pages out and put them in a binder.