Looking for any manga/manhwa/manhua with zombie or like apocalypse world in modern world era
At least 50+ chapter please thank you!!!

The only one I can think of is
Zombie Loan

Wait I remembered a couple more, but they aren't 50+ :<

Dead Life
Hungry City
Sekai no Owari ni Shiba Inu to

Dead Days is the only one that pops to mind right now for me, though there's probably more.

popular example: Return Survival

Sweet Home (KIM Carnby) is the only one I know of that has 50+ chapters.

Here some manga recommendation from my side.

Highschool of the Dead - The only series that have done the right way of classical zombie apocalypse(no mutated monster, running zombies or super power characters)
Mouryou no Yurikago - Zombies and titanic
I Am a Hero - This might be what you are looking for

Rokkon Shojo
TeppenMezashiteTondeAruYo
Let justice be done, though the heavens fall