I'll update this OP as people post. Feel free to leave a personal review, ask questions, etc. Even if you see a program already listed, feel free to add your own personal review in the thread.
This listing is not an endorsement by GCM.
Bob Books
Life of Fred early readers
Learn to Read in 100 Lessons, Funnix (sequel)
Hooked on Phonics
Reading Eggs (online)
Teach Your Monster to Read (online or app)
Explode the Code
The Ordinary Parents Guide to Teaching Reading
Sing, Spell, Read, and Write
The Measured Mom. Lots of FREE resources.
https://www.themeasuredmom.com/