You do not need a RAID in a first place, you may run each node on own disk. It would be preffered to start nodes one by one: wait until the first one almost full or at least vetted, then start the next one.
But if you want to go with RAID, any RAID with parity or mirror should be good to go (RAID1, RAID5, RAID6, RAID10, RAID50, RAID60, etc.). Please avoid using of simple pool/simple volume/stripe/JBOD/RAID0, they are not reliable - with one disk failure the whole node is lost.
Just be aware, the reliable RAID requires to waste at least a one drive for reliability, unlike when you use one node per disk.
See also RAID vs No RAID choice