Looking for tips on marketing a psilocybin microdosing ecommerce shop

I'm doing marketing for a psilocybin microdosing brand based in the US. Until now they've made most of their sales from one instagram account, but they're often shadow banned. And running ads on Meta and google is tough.

Does anyone have any advice on how I can best get traffic to this website?

Is influencer marketing the best way?

We also have a free ebook guide on what microdosing is. Would it be better to run ads to this guide, then use email marketing to get sales?

Any advice is much appreciated!