This is a tough situation! While Emily is pretty (it's my name, after all), it's extremely common. We definitely don't need to add any more Emily's to the bunch. I applaud you for wanting to find another less common name. Here are your options, as far as I see them:
-- Tell your husband you absolutely will not name your daughter Emily. (You are her mother, so this is your prerogative. Likewise, if your husband hated the name you picked out, you would need to find another.) Since you don't have any other favorite names you like, compromise by letting him select five OTHER names he loves and letting you decide between those five other names.
-- Use a name that is related to Emily, either in the first or middle position. Suggestions: Amelie, Amelia, Emilia, or Emmeline. Amelia and Emilia make GREAT middle names rhythmically, so you might have an easier time using those than using Emily.
-- Use a name with a similar rhythm and similar ending sound to Emily. Among my favorites are Elodie, Rosalie, Cecily, Coralie, and Melody.
-- Use Emily as your daughter's first name, but call her by her middle name. (Rhythmically, it's easier to use Emily in the first position.) Emily Faith can go by Faith, Emily Miranda can go by Miranda, Emily Victoria can go by Victoria, and so on.
-- Search long and hard until you find a first name you like that sounds good with Emily and with your last name. It's tough, since Emily is stressed on the first syllable, but there ARE names that sound good with it. My favorite options are the two-syllable names that end in a consonant. I like Catherine Emily, Charlotte Emily, Morgan Emily, Margaret Emily, and Regan Emily, for example. I answered this same question for you a while back with a long list of suggestions. Here's the link to those:
https://answersrip.com/question/index?qid=20080712141554AAwy8FK
Good luck, and I hope this helps!