The only science/history APs I have taken are APHG, APWH, APUSH, APES, and AP Bio. This will be less helpful for other tests. All resources listed are (currently) free! These are mainly video reviews/lessons.

History Resources

Heimler’s History (all)

Jocz Productions (APUSH)

Anti-Social Studies (APWH, APUSH)

*good DBQ Predictions posted on instagram

Marco Learning, videos and study guides (all)

Stephanie Gorges (APWH)

Khan Academy (all)

Science Resources

Mr Dischinger-Smedes (APES)

Khan Academy (all)

Marco Learning, videos and study guides (all)

Bozeman Science (Bio, APES, Chem, Physics)

The APsolute RecAP (Bio)

Carrara (Bio, Chem, Physics)

AP Bio Penguins (Bio)