There’s so much information out there in all the requests you posted. On ADDitude, there’s an entire section of the site devoted to parents of kids with ADHD: https://www.additudemag.com/category/parenting-adhd-kids/. There’s some guidance on when mom or dad has ADHD too:
ADDitude also offers many eBooks:
Of course, there are many wonderful parents here who will chime in and let you know what has been useful for them as well.
ADDitude Community Moderator, Author & Mentor on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism