Two Fathers (2013)

They are both about two fathers who look after their young child as they start going to school.
Both families were judged by outsiders due to their unique family situations.
P&D is LGBTQ+ while Two Fathers is not
Wholesome family Taiwanese show
All 4 fathers are nice and kind-hearted

similarities:
Both are extended slice-of-life, slow burn Taiwanese dramas that explore relationships between colleagues, friends and romantic interests.
Both show unrelated people helping to raise a young girl.
Both share comedic moments and some extreme characterization.

differences:
Leads...2F = 2 men, F3 = 3 women
Extended family...2F includes family of 1 romantic interest, F3's mother-in-law and spouse are integral

Both stories focus on family relationship and both stories really great and unique . For those that like family drama you might want to give it a try.

In both dramas a baby is left with multiple men who could possibly be the biological father and take care of the child together.