Hello Sara,
Candid's Foundation Directory is a great resource. You may be able to access it for free at your local library.
You can also find a free list here: https://humanepro.org/grant-listings
You can also sign up for free, for limited information, at Grant Watch - https://www.grantwatch.com/.
Wishing you the best of luck in finding funding.
------------------------------
Carol Whaley
President
PurrChance Strategic Solutions
Pittsburgh PA
------------------------------