If you're looking for something other than Arch, Airbyte could be a good alternative. It's an open-source data integration platform that can move data efficiently from more than 300 sources to many destinations. It has features like a Connector Builder, Extract Unstructured Data, and automated schema evolution that make it useful for big data integration and small data integration. The platform can be deployed in a variety of ways, including in the cloud and self-managed, so it should fit into many organizations.
Another option is Peaka. It's designed to simplify data integration by connecting different data sources, including relational and NoSQL databases, SaaS applications and APIs, without the need for ETL. Peaka offers federated query, streaming ingestion and immediate replication with Change Data Capture. It also offers self-service integration with a variety of connectors and flexible pricing, so it could be a good option for lowering operational and maintenance costs while democratizing data.
Tabula is another option. It's a no-code platform for business and data teams to combine, transform and visualize data. It offers automated workflows, standardized data, custom metrics and real-time insights, and integrates with many common data tools. Tabula's interface is designed to be easy to use, and it can automate spreadsheets and workflows, so it's good for both technical and nontechnical people, and it can be a useful tool for many business departments.