A Bestiary of Companions for 5e

https://www.drivethrurpg.com/en/product/499421/a-bestiary-of-companions-for-5e

Introducing A Bestiary of Companions, a Fifth Edition supplement that will make your adventures even more exciting! Designed for both players and GMs, this guide is packed with a delightful array of familiar and fantastical creatures to enrich your party's journey. Forge deeper bonds with your favorite pets and familiars, and uncover dozens of enchanting new friends that will add depth, excitement, and charm to every quest.

A full-color, softcover, hardcover book or premium hardcover book (6" x 9") with over 120 (or more) pages of new content (plus stretch goals), the Bestiary brings 40+ new monsters to be used as loyal pets, helpful familiars and charming little allies.
For each companion, we've included one to two pages of playable material: adventure hooks, dungeons, companion traits like how to understand them, their favorite activities, or unique abilities, and more! We aimed to create a book where every companion has a unique feature that sets them apart—whether it's the quest to find companion or a special way they communicate information to the master. It's much more than just descriptions and tables; our Bestiary offers enough unique material to build entire storylines around each companion, adding depth to your campaigns.