No booze! Your body needs to be extra-hydrated when you have a cold and booze dehydrates you. No booze for sick people unless they're dying and its their final request. Not strictly related to the topic but there was this thing about giving cold people booze to "warm them up", terrible advice do not do it. Booze is literally poison.

But soups are amazing because they're warm, hydrate and are easy to digest, you need some proteins though. Chickpea soup is really good: https://www.youtube.com/watch?v=lYqct6ttONs

Or any clear veg stock soup with potatoes and whatever proteins you have just throw it in you cant go wrong tbh.