If you're looking for an XML editor that supports multiple XML technologies and can be integrated into your workflow, Oxygen XML Editor is an excellent choice. It offers a comprehensive set of features, including XML validation, XML schema modeling, XSL/XSLT support, and single-source XML publishing with WYSIWYG editing. Oxygen XML Editor is available as a standalone application and Eclipse plugin, making it highly versatile.
Another robust option is Altova, which provides a suite of tools for data integration and XML management. With products like XMLSpy, a professional XML and JSON editor, and StyleVision, a report builder and XSLT style sheet design tool, Altova offers advanced XML and JSON editing capabilities. This suite also includes tools for transforming and debugging XML documents, making it a strong contender for integrating XML technologies into your workflow.
For more specialized needs, Codeium might be worth considering. It offers AI-powered coding assistance that supports over 70 programming languages and integrates with leading IDEs. With features like advanced code completion, code search, and an AI chat assistant, Codeium can enhance your productivity significantly.