Hip Homeschooling reviewed the Rhodia hardcover dot grid Webnotebook, the Rhodiarama dot grid soft cover notebook, and the My Essentials grid notebook. Each of these notebooks is fantastic for bullet journaling, and they all have 90 gsm paper that works well with any pens.
And the best news: she is giving away 5 of these notebooks, and winners can choose which notebook they want! See her post here for lots of photos of each notebook, and to enter. (USA only, 18 years or older.)