I know I'm forgetting something major & it's gonna bother me.
1. Dungeon Meshi/Delicious In Dungeon
2. Cowboy Bebop
3. Yu Yu Hakusho
4. Dorohedoro
5. Digimon V-Tamer (one of few manga I have re-read at least 10 times)
Honorable mentions, DBZ, Berserk, Full Metal Alchemist, NGE... all too easy...