DBParameterGroupFamily

aws rds describe-db-engine-versions --query "DBEngineVersions[].DBParameterGroupFamily" --engine aurora-postgresql

[
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql10",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql11",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql12",
    "aurora-postgresql13",
    "aurora-postgresql13",
    "aurora-postgresql13",
    "aurora-postgresql13",
    "aurora-postgresql13"
]