 If you liked
Clannad
|
 ...then you might like
Sword Art Online
|
Clannad (+Clannad After Story) and Sword Art Online are similar in one significant factor. Unlike the majority of animes with romance these two show's actually develop their main's characters affections for one another and you get to watch them grow in their relationships, as well as deal with various trials and tribulations. Overall, if you felt that either relationship (Kirito/Asuna or Nagisa/Tomoya) was fulfilling, I believe you will enjoy watching the other one develop as well.