You can try transforming your data, like taking inverse(1/x), now all lower values will be on the higher side, or try log transformation e.t.c. Also you can use some models like Isolation forest or clustering to identify them. Refer here for more techniques you can employ: https://www.aimluniverse.in/the-ultimate-guide-to-identifying-and-managing-outliers-in-data-analysis/#strategies