I'm probably not going to be the best person to ask about this, as I bought a petticoat which I needed to adjust because it was a lot bigger than expected, but in terms of a good lolita petticoat that you might be able to work with considering your budget this one from Amazon has a lot of positive reveiws from lolitas. Please keep in mind that Amazon is not always the best for lolita fashion, and that this item was found on American Amazon, but if saving up for a brand petticoat is not in your option right now this could be a good starter one that you do not have to double up.

Women Girls Crinoline Petticoat 2 Hoops Skirt Ball Gown Half Slips https://www.amazon.com/dp/B07XJ17ZKM/ref=cm_sw_r_cp_apa_i_u7RwEbCR25D2C