Stores that deal in ceiling fans can easily be found online however you have to realise that it would be difficult or quite rare to say the least, to find stores that only sell ceiling fans as the majority of stores would be dealing in all types of electricals including ceiling fans.
If you are after a specific type of a ceiling fan then your chances of finding it would be better online as opposed to the high street as stores on the high street would only stock popular models and brands of ceiling fans given that they may have limited space available.
However, what is more important is that both the ceiling fan that you choose as well as the store that you decide to purchase it from do not cause you any problems. So research carefully on the right model of a ceiling fan and then identify the right store where you could be purchasing it from.
Searching for and comparing different models and brands of ceiling fans is extremely easy online and if you can find specific websites that list down ceiling fans together with stores that deal in them then you will be able to use a single platform to research and identify a store to complete your shopping for ceiling fans with.