>>7679649I would recommend getting it online. I use Yunnan Sourcing mostly, since they're a reputable seller who don't deal in fakes. If you use ebay or aliexpress, you risk getting really bad quality tea. I think Yunnan Sourcing has a US warehouse, so shipping might be pretty cheap for you as well. Teavivre has some decent pu'erh, but I normally only use that site to order green tea, which I have been happy with. It has a much smaller selection.
If you want a high quality cheap ripe pu'erh I would recommend the Menghai V93. It comes in 100g bricks and is one of the few teas I've tried which I am convinced you could happily drink straight out of the production line, but it does get fantastic with proper aging. Yunnan Sourcing also has some great mini tuos, which are both cheap and practical, and in my experience, some of the best pu'erh you can get in their price range.
Good raw pu'erh is normally much more expensive, since it requires a bit of aging before it becomes pleasant to drink in my opinion. If you can find a 5-10 years (or more) aged xiaguan brick, that might be a good option which won't cost a lot.