BanG Dream! Garupa☆Pico

Laughter! Bands! Idols! Each episode is different and don't need to be watch in chronological order. The similarities in the visual styles and tone are downright uncanny. Both series are built upon ridiculous interactions and situations of the characters in their daily lives in a very entertaining and lighthearted way. If you like the comedic interactions of Petit Seka, you should love the over-the-top adventures of Garupa Pico! 

Both are side story about slice of life between Stage Girls and Band Girls 

Both are chibi anime based on games, the anime are wacky, zany and extremely random and fast paced 

Both of them feature chibi versions of characters from their respective musical franchises in silly comedic scenarios. Neither one is a masterpiece but if you like either franchise you'll most likely enjoy the other. 

-same characters -same comedy -same artstyle -same etc i mean, what do you expect? It's both some werid but funny BanG Dream! minianime. 

The third season of Cinderella Girls Gekijou and BanG Dream! Garupa Pico are both short series about different idol group members in their everyday lives. Both also take on colorful chibi art styles.