This is my prefered one https://www.amazon.com/Pure-Himalayan-Shilajit-Servings-Original/dp/B01KMXR8ZO/ they have a 2 grams size so you can try out

And rigth now im using this one, less potent so you have to take more check the reviews one person made small pea size balls for ease of use, https://www.amazon.com/Authentic-Shilajit-Siberian-Mumijo-grams/dp/B01DQK1F4U/
Both are good just diferent presentations.