Question: what are the best dns servers to use?
Answer: OpenDNS. 208.67.222.222. Owned by Cisco, OpenDNS has two free options: Family Shield and Home. ... 
Cloudflare. 1.1.1.1. ... 
1.1. 1.1 with Warp. ... 
Google Public DNS. 8.8.8.8. ... 
Comodo Secure DNS. 8.26.56.26. ... 
Quad9. 9.9.9.9. ... 
Verisign Public DNS. 64.6.65.6. ... 
OpenNIC. 13.239.157.177.