At Red Hat, we intend to provide support for OpenJDK 8 to our customers until 2023, and our policy of always “upstream first” implies that OpenJDK 8 will continue to be updated for critical bugs and security fixes until then.
But if you just want the "standard", currently my best advice is to use the OpenJDK builds by Oracle, AdoptOpenJDK builds or the one in your Operating System (Linux).
