Personally it would be Republic Commando - the books were good too, but I just want a sequel!
I’ve always loved Galactic Battlegrounds because RTS are fun. Rebellion is another great one that another commenter mentioned. I was also a fan of Jedi Knight and Jedi Academy and replaced them on switch a year or two back.
Dark Forces 2: Jedi Knight
This one for me. Such a solid, classic shooter. Only problem was the first level or so was obnoxiously hard, at least for 10 year old me.
For me it was how scary the game got a few levels in. The probe droids with the deserted homes where you get ambushed, oof. Had to have my dad play through those levels while I watched, but he didn’t know where to go so I eventually had to gather the courage to do it myself!
KOTOR and KOTOR 2
Jedi Academy has always been my favorite, love the lightsaber combat in that one
Star Wars Battlefront II