Recommendations for praline fillings that don’t need refrigeration

I want to send my family an Easter package with pralines. Shipping will probably take 2-4 days. Can anyone recommend recipes for praline fillings that don’t need to be refrigerated? I wanted to do a white chocolate shell with rhubarb filling but am unsure about whether or not it is possible at all to do a fruit filling that keeps at room temperature. Alcohol based fillings are unfortunately not an option.