Recommended and mentioned products
The quick and simple editor for cron schedule expressions by Cronitor
In fact, Airbyte also has its limitations, for example, the synchronization period must specify a regular time interval, such as every hour, even though it can use cron representation, but still limited by the fixed time, can not do the real streaming, i.e., once the data is triggered.
Replicate data in minutes with prebuilt & custom connectors
Yes, absolutely, Airbyte, and there are many similar solutions, but Airbyte is open source and relatively easy to use.