エスピナス is a monster Espinas in the game series Monster Hunter, which has been announced to appear in the next DLC of Monster Hunter Rise - Monster Hunter Rise: Sunbreak.
あなたのサークル's direct translation is "your circle". This tag is related to the greatest doujin event Comiket (in particular, the Comiket 100 to come this summer).
ロックの日 means Rock Day, from the wordplay of the Japanese pronunciation of the date June 9.
Liella! is the school idol group in the project Love Live! Superstar!! There was an online event on June 8.
お嬢様実力テスト means lady ability test, referring to an online test going viral on Twitter.