You could buy a pickle spice mix (this one is a North Indian style pickle mix, by the looks of it):

https://foodsofnations.com/products/indian-pickle-masala-ach...

Here's a 'wet kind' to make Gujarati style pickles:

https://www.tarladalal.com/homemade-indian-pickle-masala-guj...

Here's a recipe to make mango pickle (this being the tail end of summer, you may chance upon raw mangoes still): https://www.tarladalal.com/spicy-mango-pickle-mango-pickle-w...

Or try pickling lemons, which are easily available year-round:

https://www.tarladalal.com/sweet-lemon-pickle-nimboo-ka-acha...

https://profusioncurry.com/sweet-lemon-pickle-recipe/#recipe