Who knows, maybe part of the Han Solo movie involves Han and Co. having to sneak aboard a Star Destroyer to carry out a mission.
The most logical answer would be an Imperial Star Destroyer, as those vessels were commonplace when the Empire ruled the galaxy far, far away with an iron fist.
Even though the space station is still under construction during the Han Solo movie’s time frame, it’s plausible that one of the finished and habitable portions of the space station could be visited.
However, because Han didn’t know about the Death Star’s existence until he discovered the remains of Alderaan, we wouldn’t see Alden Ehrenreich’s iteration of the protagonist aboard the monstrosity.