Where do you all get your spices and sauces for Indian cooking?

I've been cooking more Indian food at home lately and trying to get the flavors closer to the real thing. The spices at my regular grocery store aren't that good, some dishes turn out great, others taste flat even when I follow recipes exactly.

Last week I was looking at a spice box on https://www.lordandlion.com/ with fresh turmeric, garam masala blends, etc. and the reviews seem really good, but I’m not sure how genuine those are, and yeah, the price is definitely higher than what I’m used to. So where do you usually buy your spices and pastes? Only good quality, please!

Local Indian stores, specific online shops, Amazon? And do you prefer buying everything individually or keeping some good pre-made blends around? Would love your recommendations! Thank you.