I played the American-released main games in order. I, IV, VI, VII, VIII, IX, X, and XII. I have not beaten the last two as they were ruined by main characters who force me to lose interest. X is also hampered by a horribly written story with annoying non-main characters. Have no tried X-2 or XIII (any)
I think I played Tactics after VII, but not positive if it was before VIII. I played Crystal Chronicles when it first came out, whenever that was. And then immediately swore off that entire side-series
Randomly tried V and Mystic Quest, but to little avail. I emulated V at some point long ago, and then got the Anthology release. Had trouble getting invested both times
And Tactics Advance annoyed me very early in the game as well