Google DNS:
IPv4 🡇
8.8.8.8
8.8.4.4
IPv6 🡇
2001:4860:4860::8888
2001:4860:4860::8844
Cloudflare DNS (a bit faster):
IPv4 🡇
1.1.1.1
1.0.0.1
IPv6 🡇
2606:4700:4700::1111
2606:4700:4700::1001