Determining the "second most handsome man in the world" is subjective and depends on the ranking system used. There's no universally agreed-upon list. However, various sources offer different rankings based on different criteria.
Several sources cite Robert Pattinson as the second most handsome man, often following Henry Cavill in first place. For instance, one Reddit post mentions Robert Pattinson being named second to Henry Cavill https://www.reddit.com/r/DC_Cinematic/comments/f059ar/appreciation_robert_pattinson_named_most_handsome/. Another source uses a "Golden Ratio" analysis, placing Regé-Jean Page second to Chris Hemsworth https://brightside.me/articles/chris-hemsworth-is-the-second-most-handsome-man-in-the-world-according-to-science-811228/. Other sources mention various other actors and celebrities in top spots, highlighting the subjective nature of such rankings.
A list compiled by Siasat.com includes several high-ranking individuals: Paul Mescal (92.38%), Robert Pattinson (92.15%), Jack Lowden (90.33%), George Clooney (89.9%), Nicholas Hoult (89.84%), Charles Melton (88.46%), Idris Elba (87.94%), and Shah Rukh Khan (86.76%). https://www.siasat.com/top-10-most-handsome-men-in-world-srk-grabs-spot-3111128/ However, this ranking doesn't explicitly declare a "second" place. Ultimately, the answer to this question varies widely depending on the source and methodology.