Many registrars let you hide your personal data from public whois.
In the past I used to suggest Gandi as a good service, but they've been recently bought by a horrible company and they jacked up their prices.
Now I suggest Porkbun! I'm very happy with their service.
Don't just fork it, otherwise if they take down the original repo, your fork will also go down.
Download a full copy of the repo and host it yourself (on your GitHub account or GitLab, Bitbucket, etc.).