If I wanted to stay in the RHEL world, and the 16 systems would be sufficient I'd likely just use RHEL. Otherwise, if I wanted to stay in the RHEL world, and CentOS Stream wasn't viable, I'd like use Oracle Linux.
On the Sales program thing, I've been in the developer program for almost a year. I joined when I learned about it right before my RHCSA exam to get actual RHEL for practice. Other than E-mails into which I opted in, I haven't received a single sales communication from Red Hat.