wiktorbgu/dnsproxy-mikrotik repository overview

/interface/bridge add name=Bridge-Docker port-cost-mode=short
/ip/address add address=192.168.254.1/24 interface=Bridge-Docker network=192.168.254.0
/interface/veth add address=192.168.254.11/24 gateway=192.168.254.1 name=DNSPROXY
/interface/bridge/port add bridge=Bridge-Docker interface=DNSPROXY

/container/add remote-image=wiktorbgu/dnsproxy-mikrotik interface=DNSPROXY root-dir=/usb1/docker/dnsproxy-mikrotik start-on-boot=yes cmd="--upstream=https://cloudflare-dns.com/dns-query --upstream=https://dns.google/dns-query --upstream=https://dns.quad9.net/dns-query --listen=0.0.0.0 --port=53 --cache" restart-interval=10s restart-max-count=50 restart-policy=always dns=1.1.1.1,8.8.8.8,9.9.9.9

or 

/container/add remote-image=wiktorbgu/dnsproxy-mikrotik interface=DNSPROXY root-dir=/usb1/docker/dnsproxy-mikrotik start-on-boot=yes cmd="--upstream=https://dns.google/dns-query --upstream=https://cloudflare-dns.com/dns-query --upstream=https://dns.quad9.net/dns-query --http3 --listen=0.0.0.0 --port=53 --cache --fallback=https://common.dot.dns.yandex.net" restart-interval=10s restart-max-count=50 restart-policy=always dns=77.88.8.8,77.88.8.1,1.1.1.1,8.8.8.8,9.9.9.9

/ip dns set use-doh-server="" servers=192.168.254.11