If you are looking for someone to say "place an order with ZZZ", I don't think you will find that here.
Check out the Vendor Connection channel on this site. Search for those vendor names that offer non-crypto forms of payments and read, read, read. You will find both good and critical feedback on most of the vendors in the channel. If you don't find any feedback, steer clear of that vendor.
Or you could just google "buy lyophilized tirzepatide" and be returned an entire list of US single-vial peptide suppliers.