Software to design planner

I have been a fan of planners especially those with tomoe river papers. Some brands have created excellent products with their designs. As a user, I have my own needs and I am thinking of designing my own. Do you have any ideas which software to use? I have been using Canva but its very limited although I have a Pro account. I want to make a grid-dashed planner -just like kinbor a5 weekly planner. Do you have any recommendations which software should I use? Thank you in advance.