Hoshikuzu Telepath

CGDCT Manga Time Kirara anime adaptations of school girls with a passion for outer space with a goal in striving for something related to it, Koisuru Asteroid to do with finding a completely new star so that they can name it whereas Hoshikuzu Telepath to do with building a rocket to fly into outer space. Despite the cute moe fluffiness to them, they do have their rather deep moments as well. 

CGDCT Manga Time Kirara anime adaptations with a very introverted protagonist who has trouble talking to others meeting a cast of characters in a certain goal they strive for, meeting some more talktative and extroverted main characters too on the journey. Probably the main difference in the protagonist's characters is that Umika's a lot more quiet and timid and petit-feeling whereas Bocchi is more just having social anxiety not wanting to mingle and socialize. As well, Bocchi the Rock takes more on a gag comedy-feel of a show compared to Hoshikuzu Telepath's more plot-based show. 

Similarities are both is about girls love, space themes, main character who has hard time conveying her feelings to others 

Romance anime involving an alien girl 

- Both involve a group of four school girls as the main characters - Both feature an alien and a telepath, although 4-uso splits these traits up into two separate characters as opposed to Yuu possessing both - Both have moments of comedy and drama, although Telepath is heavier on the drama while 4-uso is pretty much entirely comedy except for a few scattered scenes 

both MC are very shy and feel anxious about attending a new school and both meet a group of friends who help them grow both series are also serialized in the kirara magazine 

Girls doing fun DIY projects and going through emotions and personal feels and stuff and it's real cute and wholesome~ 

A girl and her alien friend are trying to achieve what seems like an impossible task, but maybe with the help of their classmates they will succeed. The alien friend also seems to not remember some important things 

Both are romance animes involving an alien girl.