Planners are a weakness of mine! There are quite a few to choose from, so I've listed some of my favorites (and the first one I designed!). I haven't used all of these, but each one is unique and hopefully you'll find something you like!
Charlotte Mason Naturalist Homeschool Planner by Vintage Kids Modern World
Charlotte Mason Homeschool Planner by A Living Education
Homeschool Planner - Charlotte Mason Inspired by Anna Vance Paper Co
Homeschool Planner by Brave Grown Home
Homeschool Planner by Morningtide to Eventide
DIY Charlotte Mason Planner by Mud Lace + Grace
Charlotte Mason Homeschool Planner Printables by Jessica Lynette
Charlotte Mason Complete Homeschool Planner by Everyday Graces
Charlotte Mason Style Planner and this one too by LeeSchoolHouse
And if you'd rather design your own, check out some of my favorite minimalist planners or travelers journals that you can customize for yourself!
Stay tuned for updates and check back as I continually add to my list!
If you have a recommendation, please contact me so I can check it out!