I need my website submitted to 20 niche specific directories

Niche Directory/Vertical Directory/Industry Directory Submissions

Need someone with experience submitting to directories.

I have websites in different niches that I need submitted to relevant directories. For instance if my client is a dentist in San Diego, then I need the site submitted to dental, San Diego, California, Medical directories. NOT regular directories with relevant categories. The whole directory has to be relevant.
GOOD:
dentaldirectory.com

BAD
regulardirectory.com/dentist/

I expect you to be able to find the 20 directories as well.
There will be times when we can provide the directories, but you should have your own method to finding niche specific directories.

Can't provide reciprocal and no paid directories.

I can hire 1 person to do this for several clients, or I can hire 1 person per client.