This is one of my go-to soups in the winter time. It is super quick and easy to make and it leaves me feeling warm and satiated. The key is to find a good vegan chorizo you like. I bought mine from Trader Joe's. It's a bit spicy, but flavors the soup quite well.
I make sure and brown the onion and potatoes first to develop flavor for the soup. Towards the end, remember to adjust for flavor. I add lemon juice to a lot of my dishes not really because I need it to be more sour, but lemon juice really helps to brighten up all the flavors and make them taste fresher.