I also strongly prefer paper journals. For those of you in the US, checkout Vela [1], a little company in Michigan that makes outstanding journals. The paper is excellent quality for fountain pens and they have many choices for page setup - ruled, grid, dot grid, etc. A little pricy though.
My wallet does not like you right now. Good quality hardback journals for 'cheap' (Office Depot prices), and made by a small US-Based company? Sign me up.
EDIT: Does anyone else know of any companies like this for office supplies? Notebooks, pens, inks etc.? I support Noodler's Ink since they are entirely US-based, but even they have some of their pens made in India etc.
[1] https://velasciences.com