by Aian » 07 Aug 2015, 18:59
It all depends on what kind of design you want.
You could try and hold a contest on freelancing sites like 99Design, Freelancer.com, etc and see what designs you get according to the description you provide.
If you like a design then pay whatever price you held the contest on and get your design.
If you want someone on a long term basis then you could do the same thing and ask your chosen designer if he/she was interested in a long term work.
As far as I know, freelances tend to seek for long term opportunity.