Query on SQL 2017 HA/DR

Hi All,

DC1: we have two DB servers (DB1 and DB2) on top of WSFC

DC2: 1 DB server (standalone DB machine).

I have configured SQL Always-On on DC1 from DB1 to DB2. Now I have to sync/replicate data from DC1-DB1 to DC2-DB3 or DC1-DB2 to DC2-DB3. Please advise how to achive this.

Customer is not ready to provide one more DB box on DC2, if i get one more DB machine on DC2, i can use Distributed SQL Always-on for sync from DC1 to DC2 on top of two WSFC's.

I am using MS SQL 2017 Ent edition.