Annie, there are more than 100 companies in the area, and you will probably get 100 different answers here!! But, in all seriousness, it depends how big the homes you are looking for are, where you need to be (near WWoS?) and what your budget is.
To start with, I'd suggest looking at Alexander Holiday Homes, Florida Leisure, Premier, Welcome Homes USA and New Horizons. Once you start to narrow it down, feel free to ask more ??s