Since there's no list here I feel comfortable referring you to Notary Rotary (Admin, if this is out of line I apologize and please delete this post)
Go there, get a basic listing for yourselves...go to Signing Central and start working your way down the list, reading the ratings and feedback about each company and signing up with only those 3.5 starts or better.
SnapDocs is merely a platform for companies to use...much like Notary Cafe is. If you want a list of companies to sign up with - join Notary Rotary.
In addition, I'm not sure where you all got lessons or got certified, but I know that there are a couple very good certification programs out there that not only teach you well but provide support afterwards and refer you to companies who use their graduates. One is Notary2Pro, other is Direct Closers (think that's now changed names but if you google Direct Closers you get to the right site).