Please tell me about a scalp massage that can be done at home.

Whenever I go to the sauna, I habitually apply shampoo to my hair for more than 10 minutes, and

After washing your body, massage your scalp with your fingers, then rinse, and

I shampooed one more time.

But it was too much of a hassle to do this at home every time.

Still, this greed of wanting to see the same effect as if I had done it even though I haven't.

I'm curious.

Is there a simple way to massage my scalp at home while protecting it?

Does the scalp patting device sold at Daiso work?