Best notebooks for fountain pens from LeStallion
https://lestallionwritingnotebooknotes.birchreport.com/posts/why-the-lestallion-writing-notebook-could-change-your-daily-workflow
I've been testing LeStallion's notebooks with several fountain pens, and the paper handles wet inks like a dream with no feathering or bleed-through. The 100gsm stock is smooth without being slick, giving nice shading and sheen. The A5 size lies perfectly flat, and the round spine sewn binding means it opens fully. Great for daily journaling without the high cost.