Denpa Onna to Seishun Otoko, Ano Natsu de Matteru Recommendations
Both Anime involve aliens and both anime deal with friendships and growing closer to each other. Both anime are also mellow slice of life for a nice mellow watch.
space/slice of life / drama ..
the characters are very similar you have
Mio/Erio , Kanna/Ryuuko , Maekawa/Remon etc ..
it felt as if it was an alternative version that
focuses on the romantic aspects ..