Warning: The following DNS services are ones I have studied. Ratings reflect my personal analysis and understanding.
IPv4: 1.1.1.1
IPv4: 9.9.9.9
IPv6: 2620:fe::fe
IPv4: 149.112.112.112
IPv6: 2620:fe::9
IPv4: 208.67.222.222
IPv4: 208.67.220.220
Hostname: anycast.uncensoreddns.org
IPv4: 91.239.100.100
IPv6: 2001:67c:28a4::
Hostname: unicast.uncensoreddns.org
IPv4: 89.233.43.71
IPv6: 2a01:3a0:53:53::