Start with high-confidence handwriting books, then narrow by subgenre or adjacent topics.
Big Preschool
School Zone, Joan Hoffman
Brain Quest Workbook: Kindergarten Revised Edition
Workman Publishing, Lisa Trumbauer
Brain Quest Workbook: 1st Grade Revised Edition
Preschool Paper Crafts
Stefania Luca
My Kindergarten Workbook
Brittany Lynch
My First Learn-to-write Workbook
Crystal Radke
Learn to Read Activity Book
Hannah Braun M.Ed., Hannah Braun