I'd rather make what I need using what I have on hand.
I absolutely agree! The only reason I buy a planner is because I need something hardcover bound, because my planners get a LOT of wear and tear.
Specifically, since 2023, I've bought the paperblanks mini yearlong hardcover planner every year. The reason i've stuck with it is because similar to OP, I function more on to-dos than on time blocking schedules, and I need something that won't leave empty space if I don't finish a task. As someone who has executive dysfunction and depression, it gives me a lot of grace.
I like that it's a weekly setup with just a couple of lines, because it's not pressuring you to do anything specific with the space. Additionally, the monthly calendars are back to back at the beginning, which is nice for at-a-glance planning of end-of-month events, or a period tracker if that's something you need.
There's also a section for birthdays, a travel date log, tons of note pages (both lined and unlined), and international holidays/moon phases are already on the calendar. There's two ribbon bookmarks (good for cross-referencing) and a elastic strap to prevent it from opening. There's a pocket in the back cover too!!
Usually theyre around 20$ US which is a bit pricey but on Black Friday if you order directly from their website you can get up to half off. So that's what I do every year for the upcoming one.
Sadly they don't have the design I got for this year up on their site anymore, but
here's the page for the one I get.