I've tried several times to finish my backlog. I'm sitting at 530 titles, but I'm actually adding 70 to make it an even 600- yes, I know I'm crazy but the expansion list includes stuff like Cyberpunk 2077 and Borderlands 3 I forgot to include before.
With a fresh attempt at it, I want to make it a little more exciting, though. My new approach for this is what I call "draw and shuffle". For the "draw" part, I use Backloggery's Fortune Cookie and select 20 games from the whole list. For "shuffle" I go back to Fortune Cookie but I switch to the "Now Playing" tab, drawing again but this time to determine play order. Titles are played one at a time- it helps with speed to have a laser-focus on one particular title. For variety's sake, though, anything not on the list is exempt, like Destiny 2 or FFXIV. Or Diablo since S18 is starting.
The expanded list will have 30 blocks of 20 titles. I find that splitting it into blocks makes it feel less chaotic. I also enjoy the random nature of it- mulligans are allowed to prevent series overlap in a block and in the event I don't actually own a game yet or it's a future release.
It seems neurotic but it helps me. How do you manage a big backlog, personally?
Edit: My Backloggery: https://backloggery.com/penguin_zeppelin