Hi, Our band might be of interest to you - we have fiddle, mandolin, low whistles together with contemporary music. Theres a few videos on our facebook page should you wish to take a look, at facebook/nighthawksweddingband Best of luck for the future!
From my experience, best party can be organized by pros only. I have a remarkable example here https://bstars.eu/. We rented gotan project band to accompany our wedding night and they did their best. There's nothing that can beat alive music.