You have a couple of good options:

1. Choose an extension other than .com. Dot-co and dot-biz are obvious choices. You might also get more creative: how about Melissa.is, which uses the Iceland country code and gives you an instant sentence? ("Melissa is ... efficient." "Melissa is ... convenient.")

2. Add a word (preferably a verb) to "Melissa" to create an available domain-- for example, GetMelissa.com.

Happy to talk if you want more information -- I have 20+ years of experience in name development.

Nancy