I like the boxclever press diaries (previously organised mum) I get the family one, column for everyone. To do list and budget for each month, rip out shopping lists, meal plan section for each day. £9.99 on amazon atm.
Moleskine week on one page, lines on the other. I use the diary with an imaginary line between my own needs and the family's, the blank pages for ongoing notes and projects. There's a pocket at the back, elastic closure and i use a cardboard bookmark in addition to the ribbon one. It comes in (sort of) A5 size in black or coloured pocket size.The paper is good quality, too.
I love Passion Planners - they're lovely big diaries with sections at the end of each month to record the good things that happened, and to set short and long term goals for the year. There's a sweet online community around them, and you're encouraged to be creative and doodle and colour in... so it ends up being more like a record of your year than just a diary.
I really like designing my own and have used www.personal-planner.com/EN/ for a few years now. I think I first heard about them on MN actually. You can pick the layout, colours, added pages that suit you.
I have a Plum Paper one. I like the family one because you can name each section for a person in your family, it whatever you want. Mine has sections for work, my personal stuff, each if my kids' stuff, and one for home stuff.
I can never make up my mind...A5 too big for my bag and A6 to small to write everything in. After trialling pretty much everything I've gone with Leuchturm this year and really like it - pocket, elastic closure, address section, page for notes, lots of colours.