El Amor es como el Cha-Cha-Cha (2021)

Both dramas have a ML that lives in a small town at the sea and is the all-round guy that shows up and works everywhere. He always tries to make a little money.
The FL is a city girl with an interesting profession who goes to the small town to find healing and she bickers with the ML upon arrival.
They keep running into each other and despite their initial bickering, they also support each other.
Both dramas have many supporting characters that live in the small town.
Different is 'Small Town Stories' also has family plot and unless they’re at the outskirts of the city or by the sea, the area is bigger than HTCCC since it takes place in Weihai, China which has a population of 1.4 million

So these are completely different genres; Octogenarians isn’t even a romance to begin with. But the warm atmosphere, healing qualities and the stories of different elders depicted reminded me of each other. Also Guo San Shuang is a dead ringer for Hong Du Shik, which should count for something.