dunno if we need more specific types of villagers here, but my brother just found this great mod that seems to work on 2b that automatically checks for the type of villager you want. Saves a lot of time imo:
https://modrinth.com/mod/librarian-trade-finder(edited)
And this you could just load up a double chest on a clock and dump all the bamboo and craft it, drop the crafted stuff out and just auto shulkers it up