In terms of parity protection using windows, I would steer clear of Windows Storage Spaces as that has problems with not balancing out drives leading to full drives when it shouldn't be...
You need to determine whether you want realtime parity protection or snapshot parity. For realtime, windows only really has t-raid by flexraid, very similar to how Unraid works. for snapshot there is flexraid or snapraid.
The developer of flexraid/t-raid is developing S-Raid which is a software based full raid suite (can do hybrid raid deployments like Synology Hybrid Raid) but this is still being developed and it appears that he has stopped work for the moment... I was using it and was surprised by its relative completeness but it still needed more work and a far more intuitive interface.