Aku no Onna Kanbu

both mc's use mind control to dominate their prey (via eye contact) 

Aku No Onna Kanbu is kind of a weird mix between fantasy and Sci-Fi, but looking at all those armours and semi-human species it's definitely leaning more towards fantasy, and Youkoso! Is full-on fantasy with elves exclusively as the title says, they're both made by the same studio and possibly by the same people, so a lot is similar points are the visual aspects of both, like animation, finally both are harem.