Clannad, H2O: Footprints in the Sand Recommendations
H20 is a lower quality version of Clannad. You have a protagonist who has different circumstances--blindness in H20, and delinquency in Clannad--who is followed around by or meets a harem of girls. Cue crazy back-stories and a plot that just throws in random problems to make it seem spicy and you have either series. The difference is H20: Footprints in the sand finishes in half the time.
School life. Slice of life. Drama setting. Relationship/Love story with a fixed character. Main characters with personal problems and dramatic backstory. Unexpected/Tearful conclusion. Little surreal aspects.
This is a very sad anime, I can in a way say that you'll cry in a more hurt way if you watch H2O: Footprints in the Sand then Clannad, like no joke.