What is a good substitute for goats cheese in this recipe?

There are also fetas made from sheep's milk and cow's milk which could replace goat cheese.
Or, use a creamy cheese with some more flavor than just cream cheese or mascarpone.

If it's supposed to replace a crumblier goat cheese, I often use feta or cojita. I find those both have a distinctive taste so they can hold their own and add a new flavor component to the dish (as goat cheese is usually meant to do), but without tasting like goat. Queso fresco is also a good substitute for a mild flavor.

You can also try "queso fresco," a Mexican cheese. I also sometimes use feta cheese. I myself dislike goat cheese.

I'd use either ricotta or mascarpone, mixed with a little yogurt.

Any soft, spreadable cheese would work well!