@mwl I mostly use Oracle Cloud because I manage operations for the compute service. We had a problem with the FreeBSD image but @dch recently got it fixed and has updated images (incl ZFS root) planned. I also have Rocky, OmniOS guests.
If Oracle isn’t something you’re comfortable with, I hear great things about Hetzner and OVH for BSDs, and they treated me well at prior employers.
blaise