Looking for a hard R name for a first name

Currently trying to think of a hard (sounds) R name for a baby boy. We’re trying to keep initials from the family, so it has to be an R name. The thing is the grandparents aren’t really english speakers so we’ve ruled out a lot of names that have soft sounds that we liked because they are harder to pronounce or just don’t really work phonetically for them to pronounce (like [name_u]Rowan[/name_u],[name_m]Ross[/name_m], [name_m]Russel[/name_m], etc.)

We both like the ideas of [name_u]Roy[/name_u] and [name_u]Ray[/name_u] but they just seem too short so we’re looking at other options.
We’ve got a list with:
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but none of these really stick with both of us. Any good names that we’re just missing?!

I love [name_m]Roman[/name_m]!
There is also [name_m]Ronan[/name_m], [name_u]Rowan[/name_u]

[name_m]Rafael[/name_m]
[name_m]Raimund[/name_m]
[name_m]Rufus[/name_m]
[name_m]Ramon[/name_m]
[name_m]Rainer[/name_m]
[name_u]Rene[/name_u]
[name_m]Reinhardt[/name_m]
[name_m]Rudolf[/name_m]
[name_m]Ralf[/name_m]/[name_m]Ralph[/name_m]

I’m a huge fan of R names myself. What about:
[name_m]Rogan[/name_m]
[name_m]Reno[/name_m]
[name_u]Rex[/name_u]
[name_u]Roscoe[/name_u]
[name_m]Redmond[/name_m]
[name_m]Rafferty[/name_m]/[name_u]Rafe[/name_u]
[name_m]Rooney[/name_m]?

[name_m]Robert[/name_m]
[name_m]Roger[/name_m]
[name_m]Reginald[/name_m]
[name_m]Remington[/name_m]
[name_u]Reid[/name_u]
[name_u]Rhys[/name_u]

[name_u]Rhys[/name_u]
[name_u]Reid[/name_u]
[name_m]Remington[/name_m]
[name_m]Rhett[/name_m]
[name_u]Raleigh[/name_u]