Do you have a hint how to search? The results are all trash even if search for something easy like "SRAM AXS".
Create an account and search directly on TaoBao. Mobile app search doesn't really work. Webpage search is good, image search is best.
When you find the item, paste the Taobao link to your agent and let them buy it or if you want cheaper, get the agent's address and order directly on Taobao to your agent's warehouse. They will provide the same QC pictures and service if you order direct from Taobao.
If you live in the US, Canada, Australia or some Asian countries, Taobao can handle shipping from their own warehouse, but there is a risk of no QC pictures and low chance of a return/refund (your agent can return the items if you don't like them).