You could pair an ultra-bold geometric header with a wispy script body font. The stark juxtaposition creates an intriguing ... So you might use the regular, semibold, and italic variants but avoid ...

bold) R/T/A Text formatting annotation (makes the text bolded) %(^i) %(^italic) R/T/A Text formatting annotation (creates text in italics) %(^u) %(^underline) R/T/A Text formatting annotation (makes ...