Boku wa Tomodachi ga Sukunai: Yaminabe wa Bishoujo ga Zannen na Nioi

The two series employ a similar style that utilizes a soft pastel color pallet with a similar style used for the character designs. They also tackle a slice of life with a level of quirkiness and drama while also following someone who is new to the given setting. Relationships with others are also a big deal in both series. 

Club when it comes down to it, these are basically the same show. Male character is scorned by the school population in genera so he joins a vaguely-purposed club populated by mostly girls. Both are about club activities with 1 guy and multiple girls. Same inappropriate humor. 

When I saw the episode 0 of "Boku wa Tomodachi ..." reminded me a lot to "OreImo". Perhaps because there are "girls gamers", and art is a bit like, not counting the confrontation between the two heroines: Sena / Yozora (Boku wa Tomodachi) and Kirino / Kuroneko (OreImo) So, if you liked "OreImo" you'll probably like "Boku wa Tomodachi ...".