I would imagine just about any reputable provider would as long as you’re not looking for something kinky (water sports,,,,bondage,,,,rough)

And even if so I’m sure a small percentage would  

I’ve showered before/after the “main event” with several  but each time was spur of the moment, not pre-planned  

 
But just find the provider you’re interested in and ask

Raises handS! Lol Jamie and I have a lovely shower and a hot tub we could always play in… 😘

If you go to a Korean agency, the lady will lead you to the shower, get in with you, and hand wash most of your body parts. You won't be able to return the favor, because it's mostly for her benefit, but she won't object to your touching her. Rub-a-dub-dub.