This one is really spendy but there are a lot like it.

https://www.amazon.com/AquaTeak-Patented-Sumba-Shower-Bench/dp/B00DG8RXAS?ref_=ast_sto_dp&th=1&psc=1

The wooded ones seem to be a great inconspicuous option that would fit in even outside of the shower and still look good.