It's a broad church, and one I know bugger all about, coming from a rock perspective. Having got really into Snark Puppy (OK, it's probably not proper jazz... but it works for me), someone suggested Mingus's Ah Um, which I got, and I love. Also picked up the Mingus Big Band's Nostalgia on Times Square... the version of Moanin' on it just has me hitting repeat.