I'd have to agree with the Note 20 Ultra 5G. I've never had any issues with mine. It has the largest screen that I'm aware of 6.9 in. Beautiful display. Great camera and tons of settings and S Pen controls. And it does have the option to add an SD card.
I've had my note 9 for about a year or just a little over. I love mine and was also thinking of jumping up to the 10, or the 20.. I've played with the 20 and it's on point too