I also used third-party public resolvers before. Mainly FFM (its not on the list) but non-profit, EU and encrypted. If you boil down the list (from the website) to this categories, you have 4 providers. You can trust, in my opinion. But the problem with all this provider is, that you ran quick into rate limits or some query type restrictions. Especially if you run your own mail server or other DNS expensive task.
Fun fact about hosting your own DNS infrastructure and offering it to friends and family: They might actually trust other providers more than they trust you. Even if they know and trust you personally. Because they know you can theoretically read their queries, it’s more convenient for them to have a stranger do it instead.
On my notebooks, I run two Docker instances of AdGuards dnsproxy, using my own DNSCrypt resolvers as upstream servers. This setup provides anonymity from the resolver and protects against man-in-the-middle attacks, since DNSCrypt authenticates DNS responses. However, root DNS queries from the upstream remain unencrypted. Additionally, not all nameservers support DNSSEC, so a fallback is often needed. Which can still leave the upstream vulnerable to man-in-the-middle attacks. Of course, DNSCrypt is more secure (authentication, no bootstrapping), faster and anonym (against the resolver). But i think it is still not useable for "normal" people. And as a provider, the setup is more complex then DoH, DoT or DoQ, because of cert rotation and the DNS entries.