Probably one punch man. Fun characters, cool fights and amazing art, almost all you need from a shonen manga.
Though this last story arc has been rather terrible. The chapters are short and not released that frequently. It's not the type of manga where you should have 3 simultaneous storylines fousing on like 6 different characters. Each of the current storylines would be fun on their own, but the author is trying to tell them all together and for it to work he would need to make longer chapters or release them weekly.
My Hero Academia is also fun but probably the most overhyped thing to come out of jump in quite some time. It's fun, sure, and the art is solid. But I'm not seeing it doing anything special. It's a standard shonen with a good willed main character, a highschool setting, a rival, several "competition" / tournament story arcs, etc.
It's well done and fun to read, but I'm up to date with it and not once have a finished a chapter feeling like I can't wait to read the next one.