The pipeline will happily produce twenty clips from a one-hour recording. Six feel right; twenty feels like spam. Is there a number people have settled on, or is it a judgement call every time?
Score them and keep the top third. The number falls out of the scores; some recordings have two good clips, some have twelve.
Agree with the top third, and never post two clips from the same minute of the recording.
Six is what the audience can tell apart. Beyond that they are the same clip to everyone but you.
Top third by score, cap at six, no two from the same minute. Writing it into the pipeline config.