Hi guys,
I'm dying to find someone good action and fighting manga. I'd prefer if the manga was pretty mainstream/popular (not required though) and the manga SHOULD be regularly scanlated(new chapters up every week/month) or completed. No shoujo manga please. Lastly, please check my list for stuff I've read (hopefully at least some of the action ones are recognizable). I'd also appreciate it if u could compare it to something on my list.
http://https://www.mangaupdates.com/mylist.html?id=383735& list=user1

Hopefully you would like some of them, pretty mainstream:

Shijou Saikyou no Deshi Kenichi completed
Break Blade
Shi ga Futari o Wakatsu Made
07-Ghost completed
Beelzebub
Hunter x Hunter
Busou Renkin completed
Black Haze
Soul Cartel
Flow
Noblesse
Zhan Long

Bump

List of completed action manga, based on rating

I was unable to check your list, so I'll just list out some
The God of High School
Tokyo Ghoul
World Trigger
Immortal Regis
Soul Eater
Girls of the Wild's

Both Tokyo Ghoul and Immortal Regis are completed, but the story is continued in their sequel. Webtoon series (Tower of god, Girls of the Wild, God of High School) has official translator with weekly release schedule, so you could be assured that the scanlation won't drop mid-way

Idk if these are mainstream but they are pretty good
vinland saga
ubel blatt
gintama it's a comedy but it has a few serious arcs which are very well done

Battle Angel Alita

sequel has more "action"

I have the genre represented as Action: Hellsing Finished + Shi ga Futari o Wakatsu Made in my signature.
More fit too with: Biopunk: Blame! + Terra Formars, Gekiga: Kamui Gaiden,
Martial Arts: All Rounder Meguru (needs a Madhouse anime), Seinen: Berserk,
Survival: Gantz + Jisatsutou (the one underdog present) and many more.
Just follow the link and the authors present and have fun.

________________
I also read EU/US comics and am a librarian.
Manga-Masters, My ANN-Lists + Imdb