Try out this tool -
https://www.behindthename.com/top/metaYou can type in "loose" sounds and see the trend, at least for consonants. Like if you type in "lana" and choose "sound(loose)" you get a graph of popularity of all L_n_ names over time in the US.
And here's a cool visualization -
https://www.behindthename.com/top/visual/united-states/m/initial-sounds?zoom=3You can look at initial sounds, final sounds, syllables, and length, by gender.
One sound that came to mind for me, that was popular in the past, was -erry.
Jerry,
Terry,
Larry,
Gary,
Carrie,
Barry. Also mid-20th century there were a lot more D names.
- mirfak