Here are some of my favorite psychoeducation materials that I often share with my clients:
Parenting with Love and Logic: Turn your words into gold: https://www.loveandlogic.com/pages/turn-your-word-into-gold
DBT Sleep Hygiene: https://www.therapistaid.com/therapy-worksheet/sleep-hygiene-handout
DBT Dearman for Interpersonal Effectiveness: https://www.therapistaid.com/worksheets/dbt-dear-man
DBT Distress Tolerance Skills: https://www.therapistaid.com/worksheets/dbt-distress-tolerance-skills
