Make a new layer and add a CC Particle Word
Change CC Particle World properties: birth rate, longevity, radius x and y, gravity, particle colour
Add a glow effect and duplicate
Change the transfer mode to add
Add to your shot/scene
Things to try:
Change properties (particle size, particle colour, birth rate) of the CC particle World to make the sparks fit to your needs
Add them on to live footage or motion graphics.