I have this shower head adapter and it works pretty well. https://www.amazon.com/gp/product/B07P5LCJG5/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
Washing with soft water makes ALL the difference.
I use this dry shampoo because it doesn't have all the junk in it: https://dailydryshampoo.com/products/4-oz-dry-shampoo-deluxe-applicator
It seems pricey but it will last you for a long time and it's the best dry shampoo I have found to date. And I've tried a lot of them!
Here's one on Amazon