First spray your feet with antiperspirant. I stress antiperspirant and not deodorant. Next I prefer these sockshttps://www.amazon.com/Below-Thermal-Winter-Socks-PAIRS/dp/B07CBSW7W1?th=1&psc=1
Finally a quality pair of insulated boots. I like alpha burlys with 1600 grams of insulation but there are many others. I wouldnt go less than 1200.