The Exo-Drive Reincarnation Games: All-Japan Isekai Battle Tournament! Vol. 3 (manga)

In the not-so-distant future, isekai is a way of life. The world has perfected how to hit an average teenager with a truck to launch them into a new world for a fantasy adventure. But once that's done, how do you keep it entertaining? Set up a televised tournament, of course! Roaring crowds can follow a chosen Hero through his death, rebirth, and quest to save another world, armed with special tech for cheat skills, stat indexes, and whatever else is needed.

Surely this is all in good fun and no one would abuse this kind of reincarnation technology...!