As previously mentioned, selling to B&M stores will get your product out there so people can start trying them out and whatnot.
Get yourself a booth at some conventions, hand out samples etc etc etc
Some people want to put the cart before the horse but you know we have to start somewhere.
If your eliquid is premium quality and at a great price, the customers will come. If your eliquid sucks not even a wholesaler will want to deal with it. Best of luck to you!!