not really a recommendation, but you could find most of them in this search: http://www.mangago.me/genre/Action/?f=1&o=1&e=Romance,Harem
Jackals
http://www.mangago.me/read-manga/jackals/
Burning Hell
http://www.mangago.me/read-manga/burning_hell/
Troll Trap
http://www.mangago.me/read-manga/troll_trap/
Mother Keeper
http://www.mangago.me/read-manga/mother_keeper/
Apocalypse no Toride
http://www.mangago.me/read-manga/apocalypse_no_toride/
can you recommend me some action manga, i prefer if theres no romance nor harem in there...