Higurashi no Naku Koro ni Kai, Little Busters!: Refrain Recommendations
(duly note that both being the second seasons of their anime series, I choose those because they were most a like)
Yes this seems like a BIG jump, but is it really?
Both are hardships animes, all about friendship, no friendship then everything will fall into pieces. This is about trust, this is about development of friendship and it is about doing what ever to save one another, the sacrifice.
Of course the big difference is that Higurashi has all its gore and horror elements and Little Busters being much more light hearted with the comedy (but still heavy with its feels).