New onshore wind is now cheaper than new coal in most of the world, and it is often the lowest-cost new electricity available at all.
Understand that utility-scale wind is very different from a backyard turbine, which rarely produces enough to justify the cost.
If you want to support wind, the simplest route is choosing a green energy plan that sources from it.
Small steps like efficient appliances matter too, but the cheapest clean electricity increasingly comes from the grid itself.
As the grid gets cleaner, every efficient choice you make at home goes further.