I have 6 booklets in my B6! Monthly forward planning, week on 2 page, daily, notes, lists and meal planner/shopping list. These are my daily inserts
My B6 is from Sunday Leathercraft. The smaller one from PelleStudio. I also buy planners from Etsy and FoxyFix. There are loads of sellers on Etsy and I usually buy from there as I like to support small businesses.