Hi @Spyridon_Dosis,
Just heard back from our Resources team, they told me that "We do support a reverse tunneling architecture with Retool RPC, so maybe this user can put a custom Retool RPC agent in front of their database".
As well as that our existing SSH tunneling provides more or less the same security model as SSH ProxyCommand.
They also noted that AWS Private Link is not currently viable on cloud given the current resource connection lifecycle. But that this could be on the roadmap for enterprise/self-hosted customers.