DNS-over-QUIC is a plausible alternative to DNSCurve, but you're still looking at a fallback to TCP TLS when you encounter a middlebox which is interfering with

DNS-over-QUIC is a plausible alternative to DNSCurve, but you're still looking at a fallback to TCP TLS when you encounter a middlebox which is interfering with all the UDP traffic it doesn't outright block.