Hi Hamsini S. - Phoenix and the Arize platform leverage clustering algorithms such as HDBSCAN (https://hdbscan.readthedocs.io/en/latest/how_hdbscan_works.html). There is also new Embedding oriented clustering projects such as EVoC (https://github.com/TutteInstitute/evoc) that you might want to take a look at.
Leland, the Tutte Institute, and the Scikit-learn community are super good resources on this. Hope that helps!
https://youtu.be/g5DZuRDnOGY?feature=shared