I was looking through that list the other day myself. Here are some that I play and like: Onirim, Imperium Classics, Wingspan, Cascadia, Spaceshipped, Tin Helm, Gate, and, if you have a bit of disposable income, LCGs like Arkham Horror and Marvel Champions.
Spirit Island is the king for a reason! Good amount of variety in the base box, and every expansion is great (Branch and Claw first recommended to add some unpredictability alongside new spirits). Cheaper “starter” version is available Horizons of Spirit Island.
One of my favorite genres of solo games is the engine/tableau builder. Typically a “beat your own score” doing the best you can with cards drawn, with some automa to challenge. My favorites (pick the theme you like most):
Terraforming Mars: Ares Expedition
Crisis expansion adds cooperative mode and elevates solo play.
51st State: Master Edition
Also available with all expansions as Ultimate Edition
Wingspan
Puzzle Dungeon is a nice little travel game with massive amount of heroes available for near unlimited replayability.