There are several good options for automated keyword clustering that can save you tons of time compared to manual work in Excel. Most tools use semantic analysis and search result overlap to group keywords intelligently, letting you adjust clustering sensitivity based on your needs. Look for features like bulk processing for thousands of keywords, multiple clustering algorithms, adjustable parameters for cluster size, and easy export options. You can do keyword clustering at
https://megaindex.com/. This platform handles large keyword lists efficiently and gives you good control over the clustering parameters.