 If you liked D-Frag! |  ...then you might like Grand Blue |
1) Both mangas have a lot of comedy that can make you laught for hour( not literally) 2) Both mangas have much "meme face" 3) The main character of both mangas do the role of "tsukkomi" 4) Both main character are involved in funny scenes and with "boke" (idiots) characters
1. The comedy is very similar, in a good way i might add, both will have you smiling throughout. 2. Both have great artwork, most noticeable on the over exaggerated reaction faces. 3. Both having a school club setting, but the antics make you question this. 4. Both focus in on the experience/viewpoint of a male MC. 5. Both are ongoing 6. While its not the main focus there are enough ships to go around (if you're into that).
It shares the same chaotic energy with will create absurd situations. Another plus of this manga that it's charters more developed in general, but for this reason plot moving in very little steps. Anyway, the manga is good for people who's like grand blue