・DNS Server
NextDNS
https://nextdns.io/
Quad9
https://quad9.net/

・DNSCrypt
DNSCrypt-Proxy
https://github.com/DNSCrypt/dnscrypt-proxy/releases
Simple DNSCrypt
https://simplednscrypt.org/
Unbound
https://nlnetlabs.nl/projects/unbound/download/
Stubby
https://dnsprivacy.org/dns_privacy_daemon_-_stubby/