Cylinders I keep in either chests of drawers or boxes. One chest of drawers holds BA up to around 3500, and another holds wax cylinders. The excess are kept in lidded cardboard boxes I picked up from the news agents for $3 each. I like having these with lids, as it keeps the dust out, and you can stack them 3 or 4 feet high & they remain stable

I used to have my cylinders separated by artist/genre for years, and I always knew which drawer to open to find what I wanted, but about a year ago, I resorted them by catalogue number. Ever since I've found it a real PITA to find things, but I guess I'll get used to it eventually, once my brain starts to relate song titles to catalogue numbers. At the moment I find myself having to rely on either looking everything up in the BA book, or opening 2 or 3 drawers and scanning over the lids of 100 cylinders to find anything.
It was much easier when I knew if I opened the second drawer, I'd find 3 rows of Billy Williams, then 3 rows of Billy Murray, then 2 rows of Ada Jones etc.
Another problem I've found with keeping my BA's in drawers by catalogue number, is when I get new cylinders, I then have to insert them into there appropriate position, and that can sometimes mean moving 3 ½ drawers full over cylinders to accomedate it/them. And because the drawers are full, this means the ones at the end of the sequence get kicked out of the drawer & into the boxes, which also then have to be reorganised
I also keep my wax cylinders in order of record numbers, but I dont buy these often, so I dont have to move them along very often.
Because most 2M cylinders only have a number on the lid, I do keep a sheet of paper in each drawer with a kind of location graph drawn on it, with the rec no., title & artist written in each square.