Which blockchain nodes fit on a VPS
A pruned node checks every block and transaction just like a full archive node, then deletes old block data and keeps only recent blocks plus the current state. That brings a Bitcoin node down to a few dozen gigabytes, which is why it runs well on VPS-3 with 64 GB of NVMe. Litecoin works the same way, and a pruned Monero node fits on VPS-5.
Light nodes and Lightning nodes are smaller still. A Celestia light node samples data instead of storing the whole chain, and LND with Neutrino talks to other nodes for block data, so both fit on VPS-2. A Dash masternode needs a full chain and steady uptime, and VPS-4 gives it room. The table on this page lists disk and RAM for each network.