If you're looking for manga similar to Kimi ga Hajimete, you might like these titles.
Third year student Aoi Shimizu plunges herself into the school swimming pool while still fully dressed. A male student, Oohashi, sees the incident from the school's archery range and comes running to her rescue. Why is Aoi so upset and will her chance meeting with Oohashi set her on the right path into the future?
Right before we die, an angel comes to our side and waits for the moment when it can ferry our soul to Heaven. In the case of Rin, a pop singer who has just been dumped by her producer boyfriend, it's because her angel is present that she can't commit suicide. She can see the handsome angel Faye, who won't leave her side until his mission to collect her soul is complete...
Having sacrificed everything to land her position as the editor-in-chief of a fashion mag, Serena has every intention of taking advantage of the perks of her job - and that includes bossing around a younger cameraman under her! With his over-exaggerated reactions, Hal is an endless source of Serena's amusement - but such an abuse of power can only go on for so long until something gives!