Is it permissible for a handsome young man to post his pictures on social media platforms, and is there any temptation for girls in that?

The Sharia has forbidden everything that leads to temptation (fitna) and has obligated the blocking of means (sadd al-dhari'a) that lead to corruption. Everything that is a cause of temptation is not permissible. Gazing that leads to temptation is forbidden, except for an overriding benefit and without lust. Based on this, it is not permissible to publish these pictures, as they may lead to inciting temptation.