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Both are xianxia dramas in which the ML is a dragon who becomes involved with the human FL. Both FLs are (at least in one life) a cultivator.

Both are about identical twin FLs with very different personalities. Due to an accident, the spirited twin ends up married to the ML in place of her sister.

Both are historical mini dramas in which the leads are spies who seem initially to be on opposite sides but are actually on the same side.

Both are historical dramas involving palace intrigue and a deep connection between the leads going back to their childhoods. In both dramas, one or both of the leads has the supernatural ability to see the future.

Both are historical dramas with palace politics and a childhood meeting then separation between the leads. Both dramas involve mystical powers (shamanism vs. fortune telling/seeing the future) and have a very similar feel and pacing.

Both are about a modern day FL who time travels to the past and falls in love. Both MLs are strong and more stoic, FLs are a bit immature and very high-spirited. The two clash at first, then grow close.

Both are Republican Era dramas in which the FL enters the household of a powerful and dangerous man to get revenge for her family. Along the way, she becomes involved with the man's son.

Both are Republican Era mini dramas in which the FL marries into the powerful household of a man with other wives to get revenge for her murdered family and then becomes involved with the man's son.

Both MLs are rich, FLs are poor. The MLs have a phobia (dirt vs. water) and a harsh grandfather.
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Both are GL stories.
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Both have an office setting and sort of the same feel in the relationship and characters.
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