I listen to a lot of Jazz.  I take my piano voicings from Oscar Peterson,  I like the style of Wes Montgomery (for my leads - the octaves), i like Charlie Mingus too....

My ukulele arrangements are my own, but the music book I use is The Real Jazz Standards Fake Book (Hal Leonard) C edition, because this has a lot of what they call songs from the ”American Songbook”.  I play the songs in the key that is written in this book.  I find that this is almost in my range.