Isekai / Reincarnated TRASH [DO NOT READ!!]

adapted to anime
Harem, Incest
https://www.novelupdates.com/series/magic-maker-how-to-make-magic-in-another-world/

Axed/Cancelled/Discontinued
https://www.mangaupdates.com/series/586uqha/magic-maker-isekai-mahou-no-tsukurikata

Ecchi, Harem, Polygamy
adapted to anime
https://www.mangaupdates.com/series/o0d5r1v/shinmai-ossan-boukensha-saikyou-party-ni-shinu-hodo-kitaerarete-muteki-ni-naru

Harem, Polygamy
https://www.novelupdates.com/series/virtuous-old-man-sss-rank-is-confirmed-in-your-next-life/

https://www.mangaupdates.com/series/5b4067h/zennin-ossan-umare-kawattara-sss-rank-jinsei-ga-kakutei-shita

Harem, Polygamy

https://www.novelupdates.com/series/orc-eiyuu-monogatari-sontaku-retsuden/

https://www.mangaupdates.com/series/gubgf8l/orc-eiyuu-monogatari-sontaku-retsuden

same author as Mushoku Tensei, expect same quality

harem but not sure, comment says light read

source:
https://www.novelupdates.com/series/reincarnating-into-a-different-world-aint-this/

Harem

https://www.novelupdates.com/series/isekaid-40ish-man-returns-regressed-as-a-peerless-17-year-old/

https://www.mangaupdates.com/series/88bgduw/isekai-kaeri-no-arafo-ryman-17-sai-no-koro-ni-modotte-musou-suru

Harem? perverted MC, Ecchi

Ecchi
https://www.mangaupdates.com/series.html?id=154915

Harem
https://www.novelupdates.com/series/the-ugly-orc-strikes-back-reincarnated-as-the-cruel-crown-prince-of-a-twisted-doujin-eroge-with-no-happy-endings-but-as-an-inexperienced-guy-cruel-play-is-a-hopeless-challenge-so-ill-give-my-be/

Harem

https://www.novelupdates.com/series/reincarnated-as-the-mastermind-of-the-story-wn/

https://www.novelupdates.com/series/reincarnated-as-the-mastermind-of-the-story-ln/