Releases on September 15th, 2021 and before

dockerhub
bitnami/redis on Docker Hub 6.2.5-debian-10-r53
dockerhub
bitnami/postgresql on Docker Hub 12.8.0-debian-10-r34
dockerhub
zabbix/zabbix-server-pgsql on Docker Hub 3.0-ubuntu-latest ubuntu-3.0-latest
dockerhub
zabbix/zabbix-server-mysql on Docker Hub 3.0-ubuntu-latest ubuntu-3.0-latest
dockerhub
bitnami/postgresql on Docker Hub 9.6.23-debian-10-r33
dockerhub
zabbix/zabbix-web-apache-pgsql on Docker Hub 3.0-ubuntu-latest ubuntu-3.0-latest
dockerhub
calico/node on Docker Hub v3.20.0-32-gec30f0109882 v3.20.0-32-gec30f0109882-ppc64le v3.20.0-32-gec30f0109882-arm64 v3.20.0-32-gec30f0109882-amd64 v3.20.0-32-gec30f0109882-armv7 release-v3.20
dockerhub
calico/node on Docker Hub release-v3.20-ppc64le release-v3.20-arm64 release-v3.20-amd64 release-v3.20-armv7
Maybe you can find something interesting in this list