RE2make, Sekiro, and Astral Chain are all pretty likely to end up on my list, and right now RE2make is probably the top. It's so much fun to play, great sound, good pacing, excellent animations, fantastic adaptation of the original's interconnected level design. It's the new bar for remakes or series updates, in general.
Similarly, Astral Chain has its flaws (camera, some monotonous areas, rating system doesn't quite match up to intuitive ideas of the "best" play), but I can't put it down. That's probably my first indicator when it comes to "best ofs" - could I put it down once I started playing it, and did I go back to it? I've gone back to RE2make for the (counting Claire A as the first, and Leon B as the return) it was a blast. We'll see about Astral Chain.
Sekiro I did put down, but I still enjoyed a lot of what From was doing with it. There's a lot of ideas that are new to that studio that they're trying out, some growth in other directions, and the game is gorgeous. It's no Bloodborne, tho.
FE3H is better for me as a more relaxed thing in between playing other stuff, so it doesn't really match RE2make or Astral Chain in that regard. The game is fun and can get absorbing, but it doesn't hit the highs of those other games. That said, it does a few more interesting things in terms of plot and politics. Sometimes, though, it seems more that the game wants to deal in complex subjects without having much to say about them. Religion, culture, and dynastic politics are interesting, but it's not like they're handled particularly well by FE3H. They're just... present. Which is more than I can say for most other games on the list, but still.
Tetris 99 is a lot of fun and also meets my main criteria of grabbing me and having a game worth returning to, but there's not quite enough there. Maybe if I went back and tried the Invictus mode I would see more of what I'm looking for in a competitive puzzle game.
If I can count Celeste again because of the recent release of the DLC, tho, it's better than that whole list. Celeste is everything that I've praised in the above games and more, in a more creative and elegant package. And in Lena Raine it has far and away the best composer and OST.