I am expecting my first [name_u]Baby[/name_u] Girl in [name_u]March[/name_u], and we have finally narrowed our First Name choices to [name_f]Mabel[/name_f] and [name_f]Hazel[/name_f]. I need help with some middle name options! Our last name is a one syllable, extremely common name- so I am trying to determine what flows best. I really love feminine and classic names to go with both first names. Some family names include [name_f]Lillie[/name_f], [name_f]Louise[/name_f], [name_f]Kathy[/name_f]… Although, if we decide on [name_f]Mabel[/name_f] I would love to go with a middle name that starts with an S to honor my dad (His initials are MSS). Any thoughts or ideas are appreciated!
[name_m]Both[/name_m] are very nice, but I prefer [name_f]Mabel[/name_f]
And the MSS initials clearly mean something to you. Here are a few options :
[name_f]Mabel[/name_f] [name_f]Sadie[/name_f]
[name_f]Mabel[/name_f] [name_f]Suzannah[/name_f]
[name_f]Mabel[/name_f] [name_f]Savannah[/name_f]
[name_f]Mabel[/name_f] [name_f]Seraphine[/name_f]
[name_f]Mabel[/name_f] [name_f]Seraphina[/name_f]
[name_f]Mabel[/name_f] [name_f]Suzanne[/name_f]
[name_f]Mabel[/name_f] [name_f]Selena[/name_f]
[name_f]Mabel[/name_f] [name_f]Serena[/name_f]
[name_f]Mabel[/name_f] [name_f]Sophia[/name_f]
[name_f]Mabel[/name_f] [name_u]Sierra[/name_u]
[name_f]Mabel[/name_f] [name_f]Sienna[/name_f]
[name_f]Mabel[/name_f] [name_f]Solange[/name_f]
[name_f]Mabel[/name_f] [name_m]Soren[/name_m]
… and that’s all I can think of right now. Best of luck finding a name! 
Congratulations!
I love the two names you have chosen. I think that out of the family names [name_f]Louise[/name_f] sounds the best (and I’m biased as it’s my daughter’s middle name), although as both first names end with an L it makes for a slightly tricky pronunciation.
Some general middle suggestions I think would work well:
[name_f]Florence[/name_f]
[name_f]Isobel[/name_f]
[name_f]Rose[/name_f]
[name_f]Francine[/name_f]
[name_f]Celeste[/name_f]
[name_f]Rosalie[/name_f]
[name_f]Matilda[/name_f] (with [name_f]Hazel[/name_f])
[name_f]Katherine[/name_f]/[name_f]Catherine[/name_f] (to honour the [name_f]Kathy[/name_f])
[name_f]Grace[/name_f]
[name_f]Louisa[/name_f]
[name_f]Lillian[/name_f]
Names with an S:
[name_f]Sarah[/name_f]
[name_f]Seraphine[/name_f]
[name_f]Sienna[/name_f]
[name_f]Sabrina[/name_f]
[name_f]Susannah[/name_f]
[name_f]Savannah[/name_f]
[name_f]Saskia[/name_f]
Out of these options, the stand outs for me would be
[name_f]Hazel[/name_f] [name_f]Catherine[/name_f]
[name_f]Mabel[/name_f] [name_f]Florence[/name_f]
[name_f]Mabel[/name_f] [name_f]Susannah[/name_f]
I think that a 1 or 3 syllable name would flow the best with your surname.
Good luck!
Honoring someone with initials is a lovely idea.
[name_f]Mabel[/name_f] [name_f]Saskia[/name_f]
[name_f]Mabel[/name_f] [name_u]Sasha[/name_u]
[name_f]Mabel[/name_f] [name_f]Samantha[/name_f]
[name_f]Mabel[/name_f] [name_f]Scarlett[/name_f]
[name_f]Mabel[/name_f] [name_f]Sinead[/name_f]
[name_f]Mabel[/name_f] [name_f]Sophie[/name_f]
What cute choices! Here are a few that I think sound nice together
[name_f]Mable[/name_f] [name_f]Iris[/name_f]
[name_f]Mable[/name_f] [name_f]Rose[/name_f]
[name_f]Mable[/name_f] [name_f]Pearl[/name_f]
[name_f]Mable[/name_f] [name_f]Kathleen[/name_f]
[name_f]Mabel[/name_f] [name_f]Grace[/name_f]
[name_f]Hazel[/name_f] [name_f]Joy[/name_f]
[name_f]Hazel[/name_f] [name_f]Maureen[/name_f]
[name_f]Hazel[/name_f] [name_f]Brynn[/name_f]
[name_f]Hazel[/name_f] [name_f]Felicity[/name_f]
[name_f]Hazel[/name_f] [name_u]Patrice[/name_u]
Thanks ladies!! These are really beautiful! Seeing it in writing, I’m loving [name_f]Mabel[/name_f] [name_f]Sophia[/name_f], [name_f]Mabel[/name_f] [name_f]Susannah[/name_f], and [name_f]Hazel[/name_f] [name_f]Catherine[/name_f]. [name_f]Hazel[/name_f] [name_f]Joy[/name_f] is also really sweet!
[name_f]Mabel[/name_f] [name_f]Louisa[/name_f] would be a beautiful combo! [name_f]Love[/name_f] it! [name_f]Hazel[/name_f] isn’t really my cup of tea.