We’re looking at a policy through Travelex. It specifically mentions quarantine situations in regard to trip delay. Other options may cover it, but I feel better seeing it explicitly stated.

We’re covered through our credit card for trip cancellation due to illness, so this extra policy would just be for any expenses due to illness during the trip. As a result, it’s cheaper than including the cost of the trip.

When getting a quote, I’m putting in $1 for the trip cost, and it doesn’t seem to affect the coverage for what we’d need. The policy still offers up to $2,000 per person in trip delay ($250/day). It’s $94 total for three people for seven days.

https://www.travelexinsurance.com/covid19