The best way to contribute to the local economy is to work a local job. With that off the table, consider volunteering in the community. There’s plenty that needs doing.

Look for a remote area that has fiber internet. That should suit your needs. Also, there are plenty of rural places that have homes badly in need of repairs. Towns that have been largely neglected as vacation spots and tourist destinations. If you can do any home fixing yourself, that’s awesome. The contractors are flat out.