Support the Animals!
The Humane Society of the Pikes Peak Region (HSPPR) is a local non-profit that is a 4-star (highest rating) on Charity Navigator. They're not part of a national system and they rely on donations to continue their awesome work that includes helping people in need with low cost MOBILE clinics and emergency services, trap/neuter/release of feral cat populations, lost/found services, and working with other rescues/shelters in the area to try to get EVERY adoptable animal a home.
One of our former teachers utilized HSPPR's resources when her dog was sick and she couldn't afford to even get a diagnosis. HSPPR's veterinary clinic diagnosed her dog, recommended care, and got him back to her.