Best way to use SP?

I have about 120 SP and grow everyday. I will also buy some more power.
But what is the best way to use them?

I feel that I am creating content and get good reward from that. I also use my upvotes at different ways.

But I also feel that I am not using my SP in right way to get earnings or do anything else special with it.

Do you have some good idea?

Picture from https://coinmarketcap.com/