Please see the factsheet put together by NIST and FEMA for building designers, homebuilders and homeowners. Examples of low-cost measures include ensuring that shingles are installed properly, using more robust garage doors, and connecting the wooden frame together with metal brackets (sometimes called hurricane straps). The factsheet is here: https://www.nist.gov/publications/improving-windstorm-and-tornado-resilience-recommendations-one-and-two-family