Same main leads/cp: Yang Zi and Li Xian are reunited six years later. Flourished Peony + In the Name of the Blossom is set in historical Tang dynasty while Go Go Squid is a modern youth e-sports drama.
Both main OTPs have similar push and pull chemistry, which is fun to see. Both are romcoms with lighter elements. Both are in historical costume drama settings.
Both set or is about Harbin during the Japanese occupation, regarding their tortures/experimentation on humans.
Both are visually stunning historicals with similar tone and style of BGM, with specific focus on the FL's arc and development. Both dramas feel domestic and are focused on the FL and her relationship in her (extended) family structure as well as her ability to overcome issues within. Also both MLs are supportive of her. Both leads are extremely competent.

