Go to advanced options. You can generate your own list and load as a file on iPhone, you can also set forwarding and cloaking. But I think it is more practical

Go to advanced options. You can generate your own list and load as a file on iPhone, you can also set forwarding and cloaking. But I think it is more practical for your personal fine tuning of DNS behavior. For larger lists it is easier to point to a DNS servers that already has some block lists on. Personally I point to my personal doh/dnscrypt server which is refreshing blacklists twice a day with cron job.