Anonymous wrote:OP here. I like the suggestion of spelling it "Reyut". I'm still worried that one might be too hard for others to pronounce. I appreciate the other suggestions.
How about Reviv, or Reviva? How would you pronounce those?
I don't think it's hard, but then I am Jewish ... some people might put the emphasis on the wrong syllable but that is easily corrected. For the two you mention, I would pronounce those "Reh-VEEV" and "Reh-VEEV-a" unless told otherwise. Reviva is more obviously a female name to my non-Hebrew-speaking ear, if that matters. For Reviv I would be unsure of the gender.
OP, keep in mind there is a difference between names that people are uncertain how to pronounce when they first see them, and names that are legitimately difficult to pronounce for English speakers even after they know how. Reyut is in the former category -- people might hesitate but once they are told how to pronounce it, they shouldn't have too much trouble. Chaim, on the other hand, would be hard for people who are not accustomed to the Hebrew "ch" sound.