Don't be afraid of crying! Why are man not allowed to cry? Maid-chan has to cry thinking about this stupidity!
Anyway, you know there is a second season? Clannad after story.
If you liked Clannad you may also like Anohana.
https://en.wikipedia.org/wiki/Anohana:_The_Flower_We_Saw_That_DayIt is also a tear bringer.