Mahou Shoujo Lyrical Nanoha, Mahou Shoujo Pretty Sammy (1996) Recommendations
Both are Magical Girl series which the main heroine is in Elementary School(Primary School) where they fight monsters to protect the town where they live even though Nanoha has a bit more depth for that. the fights aren't as good in Mahou Shoujo Pretty Sammy but it has more comedy. The heroine's of both also have a rival besides just fighting monsters. so if you watch one you should watch the other.