hehe

Manga:
http://www.mangago.zone/read-manga/remonster/
http://www.mangago.zone/read-manga/tondemo_skill_de_isekai_hourou_meshi/
http://www.mangago.zone/read-manga/dungeon_seeker/
http://www.mangago.zone/read-manga/suterareta_tensei_kenja_mamono_no_mori_de_saikyou_no_dai_ma_teikoku_o_tsukuriageru/
http://www.mangago.zone/read-manga/mairimashita_iruma_kun/

Manhwa:
http://www.mangago.zone/read-manga/dungeon_reset/
http://www.mangago.zone/read-manga/the_live/

I can dig up more if you want (◕ᴗ◕✿)

oml yes ive read all of these but i gotta say your taste is amazing! mairimashita iruma kun is literally my fav ever... but yes if you have more thatd be great ヾ(❀╹◡╹)ﾉ~

http://www.mangago.zone/read-manga/my_death_flags_show_no_sign_of_ending/
http://www.mangago.zone/readmanga/the_second_coming_of_gluttony/
http://www.mangago.zone/read-manga/memorize/
http://www.mangago.zone/read-manga/kuro_no_shoukanshi/
http://www.mangago.zone/read-manga/bug_player/
http://www.mangago.zone/read-manga/path_of_the_shaman/

Yep mairimashita iruma-kun is my all time fave tooヾ(❀╹◡╹)ﾉ~

uhm if you're interested you can check out my list for more action stuff although not all of them are isekai http://www.mangago.zone/home/mangalist/1044504/