2nd Season of Diamond no Ace and Haikyuu!!
Both are similiar. The main character is interesting.
Both are very funny and entertaining.
Both have good character development.
Both are realistic, well this is shounen so there will be some unique abilities.
But the abilities is not supernatural-like, so you still can tolerate it.
If you like Diamond no Ace, you will like Haikyuu!! as well
Haikyuu!! and Diamond no Ace are both amazing sports animes. They both have really intense games that could (possibly) go on for 10 episodes straight, and maybe even more! They both deal with main characters that were at a less prestigious school that deserve to go to a better school. And in highschool their wishes start being fulfilled. Both teams in these anime aim for nationals. Also, both of the main characters aim to be the ace of these teams. Plus, both anime have and/or are getting a second season. So as you can see, there are many similarities in these anime.