Hi @paint.you1830, unfortunately, since Nested Collections are not available at the moment, you will have to do some custom code setup and use a MixItUp.JS layout.
You can find the info here for that layout process: [TUTORIAL] MixItUp3 - Filtering, Sorting and PAGINATION
There are other materials and feeds, I would do some other research as well.
Good luck and Happy Designing,
Brandon