Circles of Names

We have been trying to decide on a name for weeks now.  It seems this was so much easier with Grace, once I said the name we knew, but this time....  We know that this baby's middle will be Grace, to honor and remember her sister.  We have a list of names that we like.  Unfortunately some of our favorites do not sound particularly good with Grace, and some of the names that do sound wonderful with Grace do not have any special sentiment for my DH.  I feel like there is this enormous weight to make the right choice.  I want her to have a beautiful name, with a wonderful meaning that every baby on the block does not have.