It depends on what type of manga you like: action (like Naruto), romance, yaoi (boy x boy), etc.
Some of my fav:
Naruto, Attack on titan (Action, fights)
Midnight Secretary (Romance, Josei)
Totally Captivated (yaoi, made by Korean magaka)
Vampire Night
One Piece
Death Note
Attack on Titan
SAO and SAO Adaptation afterwards
My Hero Academia
Little Witch Academia
Assassination Classroom
Fairy Tail
Blue Exorcist
Tokyo Ghoul
Naruto
I have like Fairy Tail, Deadman Wonderland, Akame Ga Kill, Kakegurui, I have a few Kingdom Hearts ones and a Big Hero 6 one though I obviously watch more animes than read em
i watched yuri on ice, love live sunshine, and im watching bang dream right now
i never finished reading maximum ride because my middle school library didnt have the fourth book but like i need to continue it and ive read some sailor moon