We're definitely seeing an uptick in interest for Triton Datacenter[1] from vSphere users looking for alternatives.

Aside from Triton, there's a quite a bit of interest in Proxmox and XCP-ng in the community.

While alternatives are gaining popularity, they certainly do not have the same ecosystem that VMware users are accustomed to. Organizations are going to have to pony up, or make concessions.

[1]: https://www.tritondatacenter.com

They probably need a therapist at this point. They've been through a lot over the years.

There is also Hyper-V and Virtual Machine Manager and Azure Stack that might be an alternative for companies that ran Windows on their vSphere environment. I've seen Windows shops already switch to that because the licensing a lot cheaper.

There's also Nutanix, RedHat and other options that people have mentioned here.

Apache CloudStack.

It supports multiple hypervisors including VMWare, KVM, XCP-ng, etc. I haven't tried but it has some features to allow users to migrate from VMWare to Apache CloudStack with KVM and/or XCP-ng.

Xen Orchestra is another alternative.

But the issue with this and Proxmox is vsphere is not just the web interface.

Usually a company has Veeam integration for backups, and server creation/decom automations all built on the vmware platforms...

Proxmox? (I appreciate that this is a significant change)

Nutanix has a really nice product. They’re going to win a lot of business.

Both AWS and Azure have migration agnets for vShere VMs

Nutanix