If you've got a Kindle Scribe and are looking for a way to use it as a planner/calendar, you should look into Hyperpaper. And it's only $19.99 USD.
What's so great about it?
You're able to configure it precisely to your preference, then you download the PDF instantly.
Here are some of the templates you can add:
Kanban
Meeting Notes
Monthly Trackers
Day Pages
Year/Month Planner
And more!
You can even start your 12-month planner from the current month, instead of from January 1. That means you'd get a full year instead of just 8 months or so if you start now.
Check it out at https://hyperpaper.me.