Tonari no Kaibutsu-kun, ReLIFE Recommendations
The main female characters are socially awkward, have good grades at school, are directs, have the same hairstyle and are cute despite or because of their awkwardness.
The story takes place in a school setting with romance, friendship themes. Humour is sometimes similar and very good.
Behond the Main femal lead, the rest of the cast is pretty different though and there's no "sci-fi" aspect in tonari no kaibutsu-kun.
Romance shows with great characters and character chemistry. Kaibutsu-kun is more of a comedy while ReLife is more of a drama, though both shows contain elements of both genres, and end up feeling very similar.