Found a store with exo Yam bulbs and petrolim. It’s store #88. There’s no store name on the sign so I’m guessing it’s a new shop.
They also had some other seeds, glass, and corruption.
Fastest way there would probably be thru my shop. I own store #86 corruption. I have a portal at Ultima eresho and ps gyosha. I’m selling spicy beans, solidifier, warp augs and a few other things.