Todoist, my task manager, does sharing but not at the free tier, I think. For me the major downside to TickTick is the inability to have subfolders (and subfolders inside subfolders).
My favorite list-making & sharing and groceries app is Anylist. It’s Mac/web/iOS, has a free tier, and you can sharecollaborate with the Family plan ($14.99/month, or $9.99/month for single user)
Google Keep is free and offers free sharing of notes, lists and drawings.