Stuck between 2 totally different names

Husband and I are excepting a girl in May…

At first we really like the name Sloane. Pros- strong/ cool name. Has Irish roots which works with our last name. ( Mc- last name) Cons- Trendy.

I then had a dream that we named her Melanie which was totally random but we both like it.

Pros- Not really trendy and sounds super pretty to me. Goes well with our M last name. Cons- a little basic? And dated.

We decided on Josephine for the middle name for my husband’s grandmother.

Any thoughts?

Wild card name- Isla( pretty but also very trendy)