How to choose a good Guqin? What do beginners need?

First of all, the pianos made by famous luthiers are reliable, secondly, the pianos made by famous luthiers have collection value and can increase in value, and thirdly, there are cheaper ones among famous luthiers that are not too expensive. I have three qins in a row, the first two are practice qin, the tone is not good, then the third famous qin is cut by teacher Wang Yanxi, I am very satisfied, not expensive, the tone and charm are Taoist. That style.