This may not help with choosing, but I thought it was cool
as you type in a name you are interested in, the field narrows. IE it
displays popularity of similar names by same first letter, then second
letter, etc until you have only the name you typed in left and you can see
how it's popularity has changed over time. If you know the first sound you
want, it might help with a choice.
The author of that software, or someone connected to it,
now has a book out called _The Baby Name Wizard_. When you
look up a name in it, it tells you "brothers" and "sisters"
for the name, and I find that I generally feel the same way
about a name and its brothers and sisters, so that might work.