I'd like something no older than about 2-3 years or even new.
That narrows it down to... just about any motorcycle on the planet
What's your budget?
Will you ever tour with a passenger?
Do you need to haul a ton of camping gear or will you stay in hotels?
Are you comfortable riding a bike that weighs twice as much as your race bike? Three times as much?
As a former track-day junkie who got interested in longer-distance riding, the following options have all caught my eye at one time or another. I've listed their (claimed!) wet weights, because weight was one of the biggest things I noticed coming from sport bikes...
Heavyweight: Yamaha FJR1300 (640lbs), BMW R1250RT (615lbs), Kawasaki ZX-14R (593lbs)
Midweight: Ducati Multistrada 1260S (518lbs), KTM SuperDuke GT (506lbs), BMW R1250GS (550lbs), Kawasaki H2 SX SE+ (577lbs), Kawasaki Ninja 1000SX (516lbs)
Lightweight: Yamaha Tracer 900GT (474lbs), Suzuki GSX-S1000F (474lbs), Ducati Supersport S (463lbs), any sportbike or standard that's all-day comfortable
If you think you'll be riding off-road as well as on, then there are a bunch of other possibilities (Suzuki V-strom, Triumph Tiger, Kawasaki Versys, Yamaha Super Tenere, KTM Super Adventure, KTM 790 Adventure, Honda Africa Twin, etc).