All of these stores are reputable with knowledgeable staff to help you find what you are looking for. The ones with the asterisk (*), are ones that I have personally been to and love. And the ones with a carrot (^) I am lucky to be an affiliate of.
Babeland* – Locations in Seattle and New York City
Good Vibrations*^ – Locations in San Francisco, the Bay Area, and Massachusetts
JT’s Stockroom*^ – Location in Silverlake in Los Angeles, CA
Peepshow Toys^ – Online store
The Pleasure Chest*- Locations in West Hollywood, CA., Chicago, IL., and NYC, NY.
SheVibe^ – Online store
Smitten Kitten – Location in Minnesota
Tantus – One of the best manufacturers in the industry, setting the bar for high quality silicone toys.