Hara-Kiri Nonfeasance - An Army Engineer suffering from PTSD screws up his life and tries to commit suicide by throwing himself in front of Truck-Kun and winds up a midget in an Otome game. Using his engineering skills and encyclopedia-like knowledge of pop culture, he sarcastically helps the local Kingdom prepare for the Demon Lord's invasion by building an Orbital Death Laser and applying physics to magic in ways that break the world, including the many uses of the potato battery.
Flip The Script - Work-a-holic Japanese guy gets Isekai'd into a world of reverse morality by god due to an interdimensional shady deal going wrong. He gets to set the conditions of his new life and inadvertently winds up the most popular 15-year-old in a school full of thirsty girls and the most over protective sister EVER. He immediately tells himself that it is morally wrong to do anything with the girls, then almost immediately proves himself a hypocrite because boobs. Unfortunately his new body comes with serious history and frequently has to deal with The Yakuza, shady record companies, and angels that value his oh-so-powerful soul that are trying to breed him to make his children into batteries.
I was summoned by a super villainess to another universe - Dude gets summoned to a superhero universe of reverse morality to discover he has ULTIMATE COSMIC POWER... and the smallest battery ever to power it. Jack Trades decides to screw being a superhero and instead has a secret slutty identity and accidentally gives himself a split personality. Can Jack get laid by sexy superheroines without being labeled a Ho? Tune in next week! Same Ho-Time, Same-Ho channel!
Hotrod Lantern - Caught up in a hero summon, Jake is the comic relief in his group sent to defeat the Demon Lord. After defeating them, he goes home while everyone else stays behind. Ten years later he gets summoned back, only to find out a NEW demon Lord appeared and murdered all his friends. Out of guilt, he spends the next seven years waging a guerrilla campaign, steals back all his old friend's magical equipment, and kills the new Demon Lord. Exhausted, he desides to go home, only to wind up trapped in the DC universe and stuck with A Red Lantern Ring of Hate, and A Yellow Lantern Ring of fear he can't get rid of. Will he overcome his PTSD or become a dark and brooding hero?
Neither.
Jake decides, "Fuck it" and just hangs out and tries to have fun. it's not his home world, but close enough. Instead, he plans on coasting along on the dragon horde he brought with him, spending his free time helping out just enough to keep the Justice League off his back, and making it his personal goal to try to motorboat Wonder Woman at least once. Unfortunately, the DCU being what it is, nobody can just 'have fun' and so the universe keeps getting in his way.
But hey. One problem at a time.