Are there any recommendations for the good-looking clothes worn by the male protagonists in time-travel novels?

Yes, I recommend 'Young Master Gu Dotes on a Scholar's Wife Alone in a Man's Dress.' The male lead of this book, Gu Yanze, was a calm and self-controlled male god who was like a little princess at heart, while the female lead, Li Yufei, was a scholar from the Song Dynasty who had transmigrated. The two of them collided in the modern world and produced different sparks. If you like the theme of men wearing women, you can try this book. I hope you like this fairy's recommendation.