Any ballad style
pop song where the lyrics are meant to be uplifting and heartwarming, although some consider them schmaltzy.
Now despite the association of the term "ballad" with being a slow song, as the link above shows, that is not the actual definition of a ballad. Several types of songs can do.
This was especially popular in The Eighties
, and The Nineties
to a lesser extent, as a Thematic Theme Tune
, especially for sitcoms.