How about IPFS? OpenBazaar is an IPFS case study. They recently released a revamped v2 built with Go.
EDIT: I'm referring to the JS version here.
We've switched the default browser-to-browser transport in js-libp2p to a websockets relay recently, so you should give it another try.
There were extra scripts and setup. Overall moving off simplified our stack, so it was probably a good move despite libp2p's crashing.
Could be totally fixed by now for all I know.
That said, it was believed that most Protocol Labs resources were/would be devoted to Filecoin, which is probably a safe bet.
We found IPFS in general to be awesome software that just wasn't quite ready for production.
There's IPFS-cluster[0] but that's still in capital-letters ALPHA.