just a simple ultra pro binder with 9 slot pages in it

I ended up just going all Ultra Pro.

Binder and pages

I use this: https://www.amazon.com/-/es/%C3%81lbum-coleccionistas-Ultra-Pro-3/dp/B0002TT36G/ref=sr_1_4?__mk_es_US=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=ultra+pro+binder&qid=1604359478&sr=8-4

But I store it horizontally. If you keep it vertically, it will damage the cards with time.