Mostly just getting through my backlog. Though this year in particular, I would like to focus more on my Playstation backlog. I barely touched my PS4 when I had it and now that I have a PS5, I would like to get through some of my PS4 games, starting with the God of War 3 remaster so I can finally catch up to the reboot.
Currently working through Assassin's Creed: Rogue, another series I've been lagging on and meaning to get through. Though, my goal is to finish Syndicate sometime this year as well because I've just been dying to get to Origins.
Also, 2 years ago I finally got to play through Super Mario 64 via 3D All-Stars and last year, I finally 100% Super Mario Sunshine. This year, I definitely plan on doing the same with Super Mario Galaxy. I've 100% it before, but it's basically tradition at this point. My nephew actually got 3D All-Stars for Christmas but right now he's all about The Legend of Zelda. So I might start it up when he finally starts winding down on Breath of the Wild to get him back on some Mario.
I've also been trying to play some more 3DS lately. I've recently come to the realization that I hadn't really played much Mario Kart 7 so I started messing with it again, mostly just as an excuse to pick up my 3DS again. But there's actually several games I haven't really touched that I'd like to get to this year like Kid Icarus: Uprising. Been also thinking about revisiting the Zelda games, starting with Phantom Hourglass so I can finally get through Spirit Tracks. Same with the others on 3DS so I can finally beat Majora's Mask.
We'll see how it goes, especially with games like Resident Evil 4 remake and Tears of the Kingdom being absolute priorities for me when they release. Maybe even Alan Wake II if it actually releases this year. Might also have to go through the Metroid Prime Trilogy if Prime 4 finally shows itself too.