The challenge here would be, have any other Germanic-language country colonize South and Central America instead of Spain and Portugal. The UK can be included, but leave the thirteen colonies the same. Which countries would be in the best position?
And if that's not completely feasible, the alternate alternate challenge: Have any Germanic-speaking country take over an existing Spanish/Portuguese colony in South/Central America, hold it, colonize it, and make it predominantly part of that nation's culture.