Physicsandmathstutor for all of them. It includes all past papers, notes for the topics and even questions by topic if you prefer that.
Chemrevise (and chemguide too but I prefer the former) has a really good set of notes for AQA chemistry that are concise and includes practical notes too.
E.Rintoul is also a really good youtuber for AQA chemistry and sometimes I found him ever better than my teacher! He also does talk throughs of specimen papers.
Hope I've helped and good luck!