Beck or Penn?

Name Advice
1

My boys are [name]Max[/name] and [name]Rhett[/name]. I love both [name]Beck[/name] and [name]Penn[/name] but do they sound too much like [name]Rhett[/name] to have on my boy short list?

2

I think [name]Beck[/name] sounds to similar. [name]Penn[/name] is nice.

3

[name]Penn[/name] works better [name]IMO[/name]