Rehome by Adopt-a-Pet.com
A user-friendly platform that allows pet owners to create profiles, screen potential adopters, and facilitate safe meetups. It’s a trusted alternative to online classifieds.
PetRehomer
This service connects pet owners with adopters through a non-judgmental, ethical process, offering a safer and more responsible way to rehome pets than traditional marketplaces.
Best Friends Animal Society – Rehoming a Pet
Provides a comprehensive guide covering everything from preparing your pet and creating effective flyers to screening adopters and finalizing the adoption.
Re-Home Your Pets
A platform designed to help people rehome their pets responsibly, preventing abuse, neglect, and euthanasia by connecting owners with potential adopters.
Petfinder – Rehoming Your Pet
Offers support and guidance for rehoming pets, including articles on preparing your pet and finding the best adopter, helping ensure a smooth transition for your pet.

ASPCA – How to Become a Pet Foster Parent
This comprehensive guide outlines the essential requirements and steps to become a foster parent, including home readiness, time commitment, and understanding the responsibilities involved.
Best Friends Animal Society – Dog Foster Care Manual
A detailed manual providing information on preparing for, bringing home, and caring for a foster dog, aimed at preparing them for a forever home.
Maddie's Fund – Foster Care Resources
Offers a variety of resources for foster caregivers, including guides on choosing an adopter for their foster pet and completing the adoption process at home.
PetMD – The Essential Guide to Fostering a Dog
Provides tips and advice for first-time fosters, emphasizing patience and the importance of connecting with other foster parents or rescue staff for support.
Animal Humane Society – Become a Foster Volunteer
Details the process of becoming a foster volunteer, including requirements and the support provided by the organization to foster caregivers

Best Friends Animal Society - Founded in 1984, Best Friends operates the largest no-kill sanctuary in the U.S. in Kanab, Utah, and works nationwide to end the killing of dogs and cats in shelters. They collaborate with shelters and rescues across all 50 states to promote adoption, spay/neuter, and community education.
No Kill Advocacy Center - Based in Oakland, California, this organization was founded by Nathan Winograd in 2004. It focuses on advocacy and policy to help communities adopt the "No Kill Equation," a proven model for saving all healthy and treatable animals.
North Shore Animal League America - Headquartered in Port Washington, New York, this is the world’s largest no-kill rescue and adoption organization. They rescue, nurture, and adopt nearly 20,000 pets annually and have placed nearly one million animals into homes since their founding in 1944.