I know a very cool Ren in his teens with a half-Japanese parent, and a toddler Soren sometimes called Ren by family. I like it.
Incidentally, I can never quite get my head around the commenters who clearly try to turn any mildly unusual name into something tease-worthy, as if they hadn't left the playground, under the guise of doing you a favour. Because, being an adult, it never occurred to you that his peers would call Ren 'Rent boy.'