Thanks, I will definitely start with thrawn.
And thanks for all the info, very helpful & informative
I'd still encourage you to start with the X-Wing series. That series will introduce you to the state of the galaxy and some of the pivotal characters you'll encounter in the Thrawn trilogy. You could jump right into Thrawn and it'd make sense and all, but I think knowing some of the characters helps perfect the experience.
Since I, Jedi
was mentioned I'd just point out that that's my favorite novel of them all, granted I liked Corran Horn from the get-go. I would encourage you to read the Jedi Academy trilogy prior to that, though. I read the trilogy afterward and it was just weird and a little off-putting.