Hmm. "Strategy" is pretty broad. Most of the new stuff you have is turn-based, but you've got tactics stuff like X-COM and strategy stuff. If we're including both real-time and turn-based, and both strategy and tactics...What do I enjoy? I tend to lean more towards the milsim side of strategy...

• Stellaris. Lot of stuff to do here -- follows the Paradox model of a ton of DLCs with content and lots of iteration on the game. Not cheap, though. Turn-based, 4x.

• Hearts of Iron 4. Another Paradox game. I think unless someone is specifically into World War II grand strategy, I'd recommend Stellaris first, which I'd call a lot more approachable. Real time, grand strategy. I haven't found myself playing this recently -- the sheer scope can be kind of overwhelming, and unlike 4X games like Stellaris, it doesn't "start out small" -- well, not if you're playing the US, at any rate.

• Carrier Command 2. Feels a little unfinished, but it keeps pulling me back. Really intended to be played multiplayer, but you can play single-player if you can handle the load of playing all of the roles concurrently. Real-time tactics.

• Rule the Waves 3. Lot of ship design here, fun if you're into gun-era naval combat. Turn-based strategy (light strategy), with real-time tactics combat. Not beautiful. There is a niche of people who are super-into this.

• I agree with the other user who recommended Steel Division 2. If you've played Wargame: Red Dragon or earlier Eugen games, which are really designed to be played multiplayer, you know that the AI is abysmal. I generally don't like playing multiplayer games, and persisted in playing it single-player. Steel Division 2's AI is actually fun to play against single-player. Real-time tactics, leaning towards the MOBA genre but without heroes and themed with relatively-real-world military hardware.

• XCOM-alikes. I didn't like XCOM 2 -- it felt way too glizy for me to tolerate, too much time looking at animations, but I may have just not given it a fair chance, as I bailed out after spending only a little time with the game. I have enjoyed turn-based tactics games in the X-COM series and the genre in the past -- squad-based, real-time tactics games. Problem is that I don't know if I can recommend any of them in 2024 -- all the games in that genre I've played are pretty long in the tooth now. Jagged Alliance 2 is fun, but very old. Silent Storm is almost as old, has destructable terrain, but feels low-budget and unpolished. There were a number of attempts to restart the Jagged Alliance series after 2 and a long delay that were not very successful; I understand that Jagged Alliance 3 is supposed to be better, but I don't think I've played through it yet. Wasteland 2 and Wasteland 3 aren't really in the same genre, are more like Fallout 1 and Fallout 2, CRPGs with turn-based tactics combat. But if you enjoy turn-based-tactics, you might also enjoy them, and Wasteland 3 isn't that old.

• If you like real-time tactics, you might give the Close Combat series a look. I really liked the (now ancient) Close Combat 2. The balance for that game was terrible -- it heavily rewarded use of keeping heavy tanks on hills -- but it was an extremely popular game, and I loved playing it. There are (many) newer games in the series but they started including a strategic layer and a round timer after Close Combat 3. These improved things in the game (and if you like a strategy aspect, you might prefer that), but I just wanted to play the tactics side, and don't feel like the later games every quite had the appeal of the earlier ones. Still, they've certainly had enough to make me come back and replay them.