Which is best book cover design company in USA?

A few months ago, I started writing a book, but I've only finished two chapters so far. It has been difficult for me to relocate for work to another state. However, getting my book out there as soon as possible is of the utmost importance to me. I've always wanted to write, but I've never had the time. As a result, a acquaintance friend suggested that I hire a professional book cover design firm. Can this company finish the book in given timeline?