Yes, there are more ways, what we used to do, and still in use in some communities, is to put all the other domains in the whois records on a couple website’s subdomains

So we would be using DNS as the distributed storage, its in the name lol

And there are also snapshots of whois record states all over the place if the records change or are hijacked. But this makes it hard to get new ones if the records cannot be updated and theyre all hijacked

Writes to a blockchain are still some benefits like simply not being a domain name.