In the MetaBase website i see support to oracle. But in setup wizard there isn’t oracle option in database type combo.
Does MetaBase support Oracle?
Metabase supports Oracle as a datasource, but not for its internal database (where it stores all the configuraiton and questions)
As the Oracle driver license does not permit Metabase to bundle it you need to download and configure it separately as per this section in the Admin Guide https://www.metabase.com/docs/latest/administration-guide/databases/oracle.html