Host level certificates

I have several hosts/projects that now require individual certificates. Currently they are redirected via CNAME to respective Azure site. What options do I have for individual certificates to each project, so it works like this:
p1.host-com to display certificate for p1.host-com
p2.host-com to display certificate for p2.host-com
p3.host-com to display certificate for p3.host-com
Business plan allows for 1 “bring your own SSL certificate”, but I need to do this a dozen times.

Thanks,
Boyko

You can do this with ACM for $10/month per domain (zone). You can order 100 certificates, so each can have its own hostname, though it will still include the root domain as well.

If I already have certificates issued by another CA can I upload them to ACM?