Any anime that genuinely made you laugh? The stuff I liked, for example: Asobi Asobase (My favorite!) Daily Lives of Highschool Boys Monogatari Series (I know it's not even a comedy anime per se but I ended up loling at so many moments)
Why has no one mentioned Grand Blue yet? The Way of the Househusband Monthly Girl's Nozaki-kun Ore Monogatari Arakawa Under the Bridge Hinamatsuri Detroit Metal City Konosuba Kuragehime Barakamon Kaguya-sama: Love is War School Rumble Ouran High School Host Club Full Metal Panic GTO Gokusen Yamato Nadeshiko Shichi Henge Sakamoto Desu Ga Nodame Cantabile Chuunibyou demo koi ga shitai The Melancholy of Suzumiya Haruhi
Some are not fully comedy though: Azumanga Daioh K-ON If you don't mind dark comedies: Black Lagoon, Jormungand, Drifters, Hellsing & Youjo Senki Ouran Host Club Gin no Saji Love Hina Maou-jou de Oyasumi Komi-san Can't Communicate (the manga ver is better than the anime, IMHO) Gekkan Shoujo Nozaki-kun Hoozuki no Reitetsu FMP & FMP? Fumoffu! One Punch Man JJBA
A will eternal, i think there are 2 seasons available [ its a Chinese anime, but the animation is just like Japanese, i find it very funny as I have also read the related novel ]
Nichijou is the greatest comedy anime to date. The eminence of the shadow though is shaping up to be one of the funniest animes to ever exist.
Gintama Grand Blue Cromartie High School Those three are the firsts that came to my mind. Ofc there have other good comedies.