Recommendations

Both are dramas about a real world FL who enters the world of a historical game/VR where they find true love.

Both are mini dramas about a real world FL who enters the world of a historical game/VR where they find true love.

Both are mini dramas about a real world FL who enters the world of a historical game/VR where they find true love.

Both dramas are about a supernatural creature (nine-tailed fox vs. mermaid) who loses his spiritual object which becomes physically attached to the FL. While trying to figure out how to get it back, the two end up working together and fall in love.

Both dramas portray a relationship between a nine-tailed fox and a human.
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Both dramas have a human FL who ends up "housing" the pearl/stone of the supernatural ML. While the ML tries to figure out how to get it back, the two end up working together.

Both dramas feature nine-tailed foxes.
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Both MLs are fox spirits and the FLs are mortal.
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Both MLs are fox spirits whose beads are swallowed by the FL. The two then end up working together and fall in love.

Both MLs are white foxes whose beads are swallowed by the FL. The two then end up working together and fall in love.

Both of these Korean BL dramas take place in the working world and possess a similar simplistic, classic drama tone that doesn't necessarily excite viewers, but makes for a comfortable watch.

Both involve body swapping but while Switched has a darker theme and focuses on self-hatred and bullying, VV is more light-hearted and focuses on romance.

VV involves body swapping with a stranger from another universe while Switched involves body swapping with someone the characters already know.

Both shows revolve around the characters trying to adapt to their new lives while figuring out how to return to their original bodies.

The romantic leads of both of these dramas just came out of relationships that ended due to the infidelity of their partners. Due to circumstances, the leads wind up cohabitating in a house together. Both dramas also focus on the dynamics between the leads and their coworkers/friends, life and relationship lessons, conversations about marriage and life plans, and the professional backdrop of the setting.

Both of these dramas involve a prominent storyline related to the concerns of mental illness on the relationship.

Both dramas center around a Male Lead who is extremely selfless towards those he cares about, putting his own needs at less importance than the needs and dreams of his family and love interest. Male lead's attitude towards the female lead is also very similar from start to finish. There's also a heightened focus on the leads and their relationship with their found families around them.