Don't know if you are enamored by Miles' style of play or genre of jazz. As far as style, check out Howard McGhee, Clifford Brown and Chet Baker for similar styles of playing with a coolness.
As far as era of music it is endless with some of the top players being Ben Webster, JJ Johnson, Bill Evans, Sonny Criss and a cast of hundreds. You might find some samplers of jazz from labels such as Blue Note, Pablo and Concord Jazz.
If you have a decent public radio station with evening jazz programming, that can be a great source for information.
As far as era of music it is endless with some of the top players being Ben Webster, JJ Johnson, Bill Evans, Sonny Criss and a cast of hundreds. You might find some samplers of jazz from labels such as Blue Note, Pablo and Concord Jazz.
If you have a decent public radio station with evening jazz programming, that can be a great source for information.