Hazel is nice I don't know if I would use it myself, I used to really like it though.
Hazel CatherineHazel ChrysantheHazel JasmineHazel ImeldaHazel JewelHazel JuneHazel Noelle
I think it sounds fine with the other names esp
Xanthe.
Probably
Hazel more than
Delphine but
Adelaide already has the 'del' sound in it.
I don't like Hazelnut as a nn.