Quick clarification... When you say "Active-Active", Aurora doesn't support active writer nodes in multiple regions at the same time with its' "Global Database" feature. There can be only one writer node in the primary region although secondary regions can all have many active reader nodes.
With respect to secrets, Secrets Manager now support multi-region secrets natively. See the docs here. Like Aurora, there is a primary region for the secrets which are then replicated to the secondary regions. This is now the preferred approach and architecturally similar to Aurora's.
RDS Multi-region design discussionasked 2 months ago
Maintaining Separate Database Connection Sources with Aurora Multi-MasterAccepted Answerasked 4 years ago
Best practices for faster seeding of cross-region replica Aurora cluster to enable failbackAccepted AnswerEXPERTasked 3 years ago
Best practices for multi million row alter table operation on Aurora MySQLAccepted Answerasked 4 years ago
Aurora Global Database in af-south1 (Cape Town)asked 7 months ago
Can I failback an Aurora DB cluster to its original Region after a cross-Region failover?Accepted Answerasked 2 years ago
RDS Aurora Mysql Multi-master downtime and best practicesAccepted Answerasked 2 years ago
Best practice of secrets rotation on multi region databaseAccepted AnswerMODERATORasked 2 years ago
When will multi-region support for Aurora multi-master become available?asked 2 months ago
Is AWS Aurora Global Database ACID compliant?asked 6 months ago