i'm looking for a website like fiverr.com that i can pay with bitcoin for services or sell something and get paid with bitcoin. do you know any website like this?
There are numerous freelancing sites. However, there aren't any that offer you all tasks at a fixed fee of 5 dollars, or at least not that i'm aware of.
I'd definitely go with xbtfreelancer, if i were you.
However also look into the possibility of listing your services directly on the forum in the services section. If the service is in high demand then you should actually get more interest than if you listed it on any freelancing site.