I can see the appeal of [name_m]Beach[/name_m] as a guilty pleasure, the imagery is really calm and positive, and it’s easy to associate with something peaceful and happy. That said, I’m not sure I love it as a given name. It feels quite literal as a word, and a bit abrupt in sound for my taste, and a tad too similar to the swear word.
If you like the seaside theme, I think names like [name_f]Marina[/name_f], [name_m]Cove[/name_m], [name_f]Coral[/name_f], [name_m]Ocean[/name_m], [name_m]Sandy[/name_m], or [name_m]Bay[/name_m] feel a bit more wearable while still giving that coastal feel. I’d probably lean more towards those.