[Suggest me] action/fantas romance manga

[BrahMoment420]

I am looking for something similar to:

gantz, tokyo ghoul, berserk, magi, yuyu hakusho etc.

Mainly action/fantasy, but with a love interest to the MC which gets developed fairy well. Just like in the ones I mentioned above.
-No love triangle and such, so only 1 love interest
-Happy ending, meaning: the mc and love interest are both alive and together at the end.
-No last chapter bs like naruto, bleach, fairy tail.
-Preferably longer series, but can be short too.

 

[MawMaw]

Rurouni Kenshin the classic
Dorohedoro for sure
Psyren this should count as well
Yuureitou this one too I guess but its more of a thriller

 

[BrahMoment420]

@MawMaw thank you

 

[Nako]

Blood Lad