We scanned our older recipes that were on paper onto an app for that purpose. New recipes that we see are all online and even more easily stored. It's better than a recipe box because you can find recipes by ingredient, rather than paging through mounds of loose papers.

We print the recipes we really like and put them in an accordion filing folder. You can label the sections however you like.

I use a binder and insert the recipe in a plastic sleeve. That way spills and splashes don’t matter.

I fill little journal books with recipies. For written ones. I also have an online app to collect the online ones that has nice sorting options.

But since you need a new box... that suggests you already have something to fill the box. What size is your filling? There's boxes galore, baskets, plastic containers, craft projects.. probably more depending on your use.

I also use a binder but it's 1/2 sheet size. It keeps the pages free of splatters and it fits neatly on my cookbook stand. You could easily slip your cards into the plastic sleeves.