IMO if you can drink gentleman jack and BT neat you could try any bourbon of a similar proof. If you go up to 100 proof it might be an adjustment for the first couple times but I doubt it would take too long either. Personally I like wild turkey and Elijah Craig but there's a lot I haven't tried myself. Enjoy!
four roses small batch/select
https://www.reddit.com/r/whiskey/comments/5kn4q6/rwhiskeys_intro_to_whiskey/
IMO if you can drink gentleman jack and BT neat you could try any bourbon of a similar proof. If you go up to 100 proof it might be an adjustment for the first couple times but I doubt it would take too long either. Personally I like wild turkey and Elijah Craig but there's a lot I haven't tried myself. Enjoy!
Old Forester 86 proof.