This is an old thread, but I'm jumping in because no one yet had reported success with a Fusion 13 Sonoma guest on Intel. It took a while, but I have. This was in Beta 3, and I've since updated successfully to Beta 4.
The host is an iMac Pro, on Ventura 13.4.1 at the time (now 13.5.). I started with a copy of my Ventura (beta profile) VM, and switched it to the Sonoma track. Initial efforts failed with a freeze during the install process. Adding the Device Support package did not help.
Success was had after throwing a ton of resources at it. I increased the VMs drive space from 80 to 100 GB (my VMs are on a 2TB external SSD.) With 32GB RM available on the machine, I upped the VMs RAM from 8GB to 12.
Also, from a tip on another thread, I edited the VMX to add 'smc.version = "0" '
Some combination of this did the trick for me.
To update to Beta 4, I also updated the Device Support. I do not know whether that was necessary. The performance of the Sonoma VM seems nominal.