Check out supernote, they have different sizes, the nub is titanium so u wont have to replace it, it has a smaller version similar to a A6 notebook, and the cover actually opens the device and closes it when you flip the cover. If your on the go, and need something compact but lasts and feels as close to a pen on paper experience, you may prefer that.

Remarkable is very good too, its just bigger in size, more premium materials but more fragile, need to replace the tips for the marker, and doesn’t “open and close” device when opening their cover