There are so many great chinuch books out there, from To Kindle a Soul to (can’t remember the title or first name but the author is) Mrs. Arbus to Miriam Levi and beyond.
A secular book that you might find helpful is The One Minute Mother.
“How to Talk So Kids Will Listen and Listen So Kids Will Talk” by his Talmidot (Faber and Mazlish).
Learning the psychology of reinforcement and cognitive behavior management can be really helpful for positive parenting (if it’s done negatively, can it even be called “parenting”?)