You can try SEnuke for free trial but I'm not sure if it's still have a good service if you avail it. Or article post robot I find their service good.
Heya, there's this new thing, it's called "GOOGLE!" lol use it! I typed in "free article submitter" and there's a ton of them...try em out, and when you find one you like, come back and share it with us
SeNuke is a very popular choice that has been around for a while to make it tested and trialed. The longevity of the shelf life of this tool shows it is a worth while tool and one to look at.