IMHO the foremost questions are:

• How much space is available?

• Is it a flat place, or a cluttered place? In a cluttered landscape, wind is turbulent. If wind is turbulent, a turbine spends a lot of time turning into wind, and less time producing. Also, good quality laminar-flowing wind is high up then, typically out of reach for a single household. :(

If the landscape is flat, that favours trying with wind.

A wind turbine's power is determined by the wind speed and the swept area (the square of the radius). Efficiency is determined by flow qualities (laminar is way better than turbulent) and airspeed on the airfoil (long rotor blades are more efficient, but bigger, more dangerous, more difficult to handle, etc).

I second the advise to check out a wind atlas, and see the turbine designs of Hugh Piggot - if not to copy, then to learn what is worth buying. :)

Myself, I rely on vertical solar panels in winter. They do produce a lot less (from November to February, I have to charge my car in town). I have only one experimental wind generator, which is sadly a joke. It's a vertical axis turbine on a 5 meter mast with an e-bike motor at the top. Wind is collected by an array of stainless steel salad bowls. Due to low swept area and low airspeed, it's enough to make a few flashlights work. :D