Export and import of collections, questions and dashboards into another metabase instance with same Schema

I'm facing a challenge with Metabase SaaS: I have different metabase instances with same schema, and i want to export all the questions and dashboard to other instances. (I am using the metabase as SaaS).
Any advice on how to efficiently achieve replication ? Open to alternative approaches or workarounds. Your input is appreciated!

if you're using our cloud, we're about to launch v49 there which includes serialization via API's