Alex

Both star Ishihara Satomi and Iura Arata.
Workplace setting, somewhat of an ensemble.
Plot wise they are very different.

Male lead makes a bet with his friends on seducing the female lead.
Ends up genuinely falling for her.
Female lead dumps him when she finds out the truth.

After a car accident, female lead wakes up every day with memories from the previous day gone.
Male lead tries to help her adjust in life.
Atmospheric, heartwarming/wrenching, and insightful romances.

Male lead killed female lead's husband.
They fall in love without knowing who each other are.
Annoying second male lead friendzoned by female lead, won't leave her alone.
Female lead is close with in laws.

Bright and bubbly female lead is assigned to work with cold and stoic male lead.
Female lead has a boyfriend, but also develops a nice banter fueled bond with male lead along the way.
Mysteries, different topic tackled each episode.

Female leads in both are struggling to move on from an abusive relationship.
Both feature great LGBT storylines in the form of trans and drag characters.

Slower/gradual/natural/healing romances.
Slight age gaps.
Male leads are/have been bullied.
Female leads have secret and somewhat darker pasts that they're trying to move forward from.
Both tackle topics such as suicide and the loss of/desire for children.
Many side characters/subplots.

Romantic comedies.
Romance is a step relationship in a way- SSAM's ML married FL's mother prior to her death.
SOMF's FL is "engaged" to ML's ailing father. No romantic feelings in those first relationships, they occurred due to certain circumstances.

Romcoms.
Focus on around 30 something women struggling to find love.
Feature adorable animations. TTG animations speak directly to/advise the girls, whereas Yumi's cells work within her to help.
Potential love interests in the form of colleagues, meet cutes, and more.

Sci-fi thrillers.
Group of people are mysteriously transported into an alternate version of the world they know.
High risk, multi dangerous circumstances.
Slight romance.

Focus on two female leads who develop a strong friendship.
Both star Ueto Aya and Saitoh Takumi.
Ueto Aya's characters are hesitant to act on their feelings for Saitoh Takumi's characters.

Focuses on a father daughter duo both finding love post the wife/mother's death.
Female lead hasn't had the best love life. She meets and falls for a single father.