Where can I get travel insurance for "any reason"?

Hi,
I’m looking for travel insurance that I can use for work. I’m in the US now, but am moving to Portugal. I’m looking for travel insurance that I can buy to recover travel costs if my plans change for any reason. World Nomad looks good, but they don’t have the ‘Any Reason’ part. I found a helpful article on The Points Guy site, but for all the policies there, you have to be a US resident and I wouldn’t be then.
Any suggestions?