I would use rabbit ears or any TV antenna. I assume you want to keep it indoors.
FM = VHF, Same frequency. It is obviously analog but the antenna doesn't care about that.
Something like this
https://www.amazon.com/dp/B06XNM326N/
with this adaptor
https://www.amazon.com/dp/B0956QD55T/
or.. a loop antenna. but it looks like you would need the above adapter.