my thoughts go into taping foam sheets to it to make it look more natural and then pulling over some thigh high socks. boots could also work if you find the right size. shoes are hard as you've realized. You can't go wrong with classic mary janes or slightly elevated boots. i found some on amazon in a size 16 https://www.amazon.com/Womens-Patent-Leather-Strappy-Almond/dp/B08612BY6Q/ref=mp_s_a_1_1?crid=3L3R5S32UFJXO&keywords=mary+janes&psc=1&qid=1678142613&refinements=p_n_size_browse-vebin%3A1285125011&rnid=1285112011&s=apparel&sprefix=mary+janes+%2Caps%2C91&sr=1-1