Which results in this very short list:
1. Reborn as Space Mercenary
2. Reborn as A Barrier Master
Alas, I already follow these.
I tried watching the anime for the third one, but it wasn't quite doing it for me. I'm pretty old skool, coming in from days of Tenchi Muyo. I was also one of the few fans that didn't flip the table when the original creator's solution to the who-is-he-gonna-marry conundrum (The Tenchi Solution) became a thing.
Seriously, declaring the original content creator's work to be discontinuity and accepting only the derivative, non-canonical works*, just because you don't like harems - especially when it was obvious to even a five year old that this is where the story was going - just strikes me as idiotic.
* (Each freakin' show and manga where the story isn't authored by Masaki Kajishima is it's own goddamned cannon. Including the movies!)
Though I supposed that every kid on here that drops a series just because it suddenly became a harem (even though it had the "Harem" tag from the get-go) are probably the children of these guys.