Found today at goodwill, 3 Teac 117 slot cassette storage cases, I've never seen anything like them before so I had to have them! And my k2000 looks so perfect on top :
Audio Media Drawer Units for sale | eBay
Black Retro C90 Cassette Storage Box | Happy Piranha
Does anyone have a Helmer Ikea drawer for cassettes? | Tapeheads.net
Cassette storage using Ikea Kallax drawer inserts : r/cassetteculture
Cassette Drawer - Etsy UK
The Next Record Store - Need some cassette storage? We've got a nice supply of cassette drawers in excellent condition! $10 each or FREE if you buy $10 worth of cassettes!! | Facebook
Audio Media Drawer Units for sale | eBay
I made a cassette tape organizer for IKEA KALLAX drawers : r/cassetteculture
Audio Tape Cassette Storage - Solution/Review - Lyonsden Blog