The two main insurers who cover short term rentals that are also personal homes - Commercial with Residential - are Proper Insure and CBiz. I went with Proper, as they had more comprehensive coverage, in my opinion. They are both underwritten by Lloyds of London. Other companies may offer extra coverage, but it is often 'Landlord Coverage' and is not designed for short term rentals. Others offer coverage, but limited - 30 nights a year, can't serve food or alcohol, etc. So research carefully. If it is cheap and seems too good to be true, it likely is.