Pretty easy to find, look up trestolone acetate powder or even trestebol then browse the site for bulk powders. Legal, domestic, and reputable retailer has been selling it for about a year now. Tons of feedback on it from them but it is expensive. Don't want to name drop as it is technically a source but it is legal.
Running it orally and gyno like a mf'er. Have some to run IM but have a feeling I will have major gyno issues if 50mg oral is doing this to me. However, the results are mighty nice and feel great on it.