Hello!

My knowledge about DNS resolvers is somewhat limited. So, in an effort to expand my knowledge and find a DNS resolver that works for me, I've come for help here.

Here is a list of terminology that I either know too little about, don't know anything about, or want to make sure my understanding is correct about:

Cleartext (What does this mean in the context of protocols? Is it inherently bad?)

DoH (I somewhat understand this, but is it less secure than DoT?)

DoH/3 (How is this different from DoH?)

DoT (Is this more private than DoH?)

DoQ (I don't know enough about this, how does it compare to DoH and DoT?)

DNSCrypt (I'm not sure what this is.)

Do53 (I'm not sure what this is. Is it a replacement for DoH/DoT/DoQ, or does it work alongside it?)

DNSSEC (I don't know what this is.)

EDNS padding (I'm pretty sure I know what this is, it just pads DNS queries. What happens if "Cleartext" is used, does it still pad it?)

As for what I'm looking for in a DNS resolver: I don't plan to self host it, I would like support for iOS, Linux, and Android, I would like it to be free, I would like EDNS padding, DoH is preferred (although I don't quite understand the alternatives). I am aware that the DNS resolver will usually be the same as my VPN. Note: I'm not looking for a beginner DNS resolver, I've been using NextDNS for a while now, I'm looking for one with strict privacy and security.

I've tried looking at Privacy Guides and Wikipedia, but I don't know enough to make an educated decision.

Any suggestions?

Thank you all!