Halo: Master Chief Collection
Halo Wars 1+2.
Ryse, Killer Instinct
Gears of War 4 and 5
Sea of Thieves.
As far as exclusives go... The Xbox One was actually a shit console... But it was often the best place to play multiplats thanks to the Xbox One X being more powerful.
I should have mentioned I'm not big on online multiplayer. I prefer single-player or couch co-op. But there's still some good suggestions here.
All of them except Sea of Thieves have a solid single player component.