The village near my base is now a trading village. Armor, food, and many useful books are available. I’ve also created a safe nether path to the village. Just cross the enclosed nether bridge and you should see it.
I have labeled most of the villagers with details about what they sell. For the librarians, not all books are unlocked yet, so I’ve labeled those books with a “-” at the end. If that is the case, you’ll just need to unlock the book you want. If you do, please update the sign.