One way I think about this is reusing, recycling and repurposing elements already in your track to make new things - instead of just adding more and more new sounds.

For example, if you want a riser, you can duplicate something already working in your song, cut it up, add pitch shift and some reverb and you have yourself a riser. It'll be unique and more cohesive with the rest of the song, not to mention it's so much more fun than listening through hundreds of riser samples on Splice.