My top 5 would be (no specific order) :
One piece (although anime went to trash, manga rules)
Steins Gate
Re:zero
Boku no Hero Academia
One punch man
I want to put Seven Deadly Sins in the top 5 instead of One Piece only cus One Piece's anime is ruined (while the manga is #1 for me), but for now I'll wait with that.
I mostly read manga while watching the main anime (One piece, DBS, Boku no hero). The manga I read atm are those on MangaStream :
One Piece, Boku no Hero, Shokugeki no Souma, Nanatsu no Taizai, The Promised Neverland, Tokyo Ghoul: re, DBS, Hajime no Ippo, Happiness and thank god that Fairy Tail ended.
Also if ur a boku no hero academia fan, theres their spin off manga, 'Vigilante - My Hero Academia Illegals' with 10 chapters and its so good and follows the main storyline, focusing on 3 vigilantes (one has some theories on him and he resembles all might/endeavor), shows Stain in his former days and shows Ingenium, which is Iida's big brother, so overall its awesome @Muldar.
Ghost in the Shell
Boku No Hero Academia