Looking for solutions: Game Catalog (Switch), Book Catalog, Lego Set Catalog

Post Christmas mess I have realized I need a better way to track various things in my life, so I need some advice.

I’m looking for:

Game Catalog: * Main purpose for this is to prevent me from buying or requesting duplicates

Wants: * Add titles by scanning UPC * multiple platform (switch, PlayStation etc) * most for physical titles (I’m old), but support to add digital would be great * ability to flag when loaned

Book Catalog: * Main purpose is to keep inventory of a very large book collection 1000+ titles at present

Wants: * Add titles by scanning UPC * ability to flag when loaned * flexible categories

Lego Set Catalog: main purpose for this is to prevent me from buying or requesting duplicates

Wants: * ability to add by upc or set number