If you're looking for manga similar to Suzuki-kun wa Miteiru., you might like these titles.
Aoi Sakakura, a single woman in her thirties lived a dull life. But one day on the way home from work she fell down the stairs and ended up in a body of a young male high school student who was sick.
Shiba, a college student with a communicative disorder, has been reading rumors circulating on Internet forums about women 'clones', which look like a human, but are not actually a human! Instead they are perfectly obedient to their owner's orders and fulfill every desire! This should have been hastily dismissed as an urban legend but then an incident started when Shiba was hospitalized after an accident...
Kuro is a high-schooler and leads a gloomy life - has no friends and no girlfriend. But one day he gains an ability to put his soul into any inanimate object, and thus his glorious peeping career began.
Taku, a high school boy has a crush on his childhood friend Riko. But unfortunately for him, Riko holds feelings for her other childhood friend, Naoki which causes Taku to be in pain everyday. One day, after learning the existence of a shrine named "Love wishes come true," Taku immediately went there and prayed for it's guidance. What will happen to his life from that point on?!
For Shion, handjob contests with his friends are over! Indeed, as his mother has just remarried with a new man, and now he is forced to move to a region where he knows nothing and nobody. Badly received in his new school where he quickly became bullied, as well as not being able to find his place in his new home, the young high school student will evacuate all his frustrations in the river. In less time than it takes to say, he became the father of Sauman, the salmon man! His daily life will be forever changed...
On a school trip to shinobi-themed Ninjatown, a young man named Ichi Kuno accidentally springs a mystical ninja trap which sends him back to the Age of the Ninja. Having no other path, he must pose as a girl and infiltrate an Kurenai Academy, a school of kunoichi students, to retrieve a mystical scroll that can return him to the future. But when everyone around him is already far better at stealth and infiltration than he could ever imagine being, it's not going to be easy. He'll need to employ his own special bag of tricks, and have a lot of luck, if he's going to last more than 5 minutes surrounded by hot kunoichi girls, every one of whom would happily kill him in a moment if he's discovered.