c'mon guys, give a shot here

The best manga i have ever read would, in my opinion, be Mousou Telepathy Urami Koi, Koi, Urami Koi

...but my personal favorite manga is Majo no Geboku to Maou no Tsuno

here's my 10/10 (atm)

@sungjaywoo https://mangadex.org/title/43071/danshikou-ni-dokusareta-otokonoko

Youjo Senki, I prefer it far more than my other 10/10.

Dragon Ball

Battle Angel Alita (aka GUNNM)

Death Note

Delicious in Dungeon

GATE - Where the JSDF Fought

Usogui

Vagabond
Berserk
Kiseijuu
One Piece
Attack on Titan
Aku no Hana
Otoyomegatari
Koe no Katachi
Ran to Haiiro no Sekai

The World God Only Knows

Alice in Borderland

any crossdressing manga

https://mangadex.org/title/15976/shimanami-tasogare
https://mangadex.org/title/29840/fukakai-na-boku-no-subete-o
https://mangadex.org/title/34693/kanojo-ni-naritai-kimi-to-boku
https://mangadex.org/title/47754/death-is-the-only-ending-for-the-villainess
https://mangadex.org/title/50604/ggwp-young-ladies-don-t-play-fighting-games
https://mangadex.org/title/23112/aspe-chan

I think my favorite completed manga is Pluto from Urasawa. I will kill for a sequel with that final. And I know its a conmemorative work for the Astro Boy game, but damn it is a good manga.
https://mangadex.org/title/1594/pluto
Monster is the better work, but I havent read the manga because of the anime.
https://mangadex.org/title/1101/monster

Yasukooooo no neverland
made in abyss
to you the immortal