Creating a homelab for Windows file clustering with Sql

Hi all,
I need to setup a homelab ebvironment in my hyper-v (Win10) with 2 sql servers that should be part of Windows file clustering. But for this purpose i will need a SAN solution. Any recommendations of a free san solution to use? I will use a physical pc for that.
/L

There's FreeNAS (recently rebranded):

Don't know if it can work with Windows for what you're proposing.

Storage Spaces on Windows has several options:

Links inside there have details.