Best hardware for running ETH node

I'm tired of Infura. It used to be good, but it seems like they made changes to their pricing model at some point.

I have many dApps that make calls to an ETH RPC node to check on a handful of smart contracts, constantly executing view functions to check their status.

I'm not running a validator node, but I still would like high availability. I was thinking of hosting an ETH node on a cheap Raspberry Pi, running Geth and using a swap file if it needs more RAM, but so far it seems too weak.

Is there commodity hardware out there that is considered the norm for hosting an ETH node for just status checking of 1-3 smart contracts? I'm open to both appliances and self-built PC specs, but no cloud solutions, I’m sick of them.