The Lenovo Thinkpad Yoga 11E looks like it might be worth considering. $369.99 plus $12.45 shipping on Amazon (or free with Prime.)
https://www.amazon.com/Touchscreen-Convertible-Ultrabook-N3150-Quad-Core/dp/B01M2BDPEB/
B&H Photo also has it as a special order item for $349 with free standard shipping, but I don't know whether it would arrive in time for Christmas or how much expedited shipping would cost there.
https://www.bhphotovideo.com/bnh/controller/home?O=&sku=1255968&gclid=CJbrmaC8gdECFZC6wAodAXEMXw&is=REG&ap=y&c3api=1876%2C52934714882%2C&A=details&Q=