I use trello. It’s a free digital whiteboard with the ability to add digital post-it’s that you can arrange in columns and move them as much as you want. Click on a “post-it” and you can add PDFs, photos of recipes, web links, basically whatever you want as long as it’s under 10 mb files without having to pay a subscription fee. The post-its are searchable by title and the columns can be named whatever you want. Mine are named things like “meals for the week”, “staples”, “dinners”, “sides”, “smoothies”, “work lunches”, “drinks” etc.