Which Jazz Albums are similar to Kind of Blue

Sonny Rollins Saxophone Collosus; Ben Webster Meets Oscar Peterson. Miles Davis' Relaxin.

Something Else by Cannonball Adderly. If you have a turntable this LP is out in so many Audiophile pressings by Blue Note,Classic Records and some others out there if not get the re mastered 24 bit version.
Also Dave Brubeck Time Out is a breezy romp too.

You might listen to Pandora.com and set up a "radio station" based on Miles Davis....playing similar music is what Pandora does. I have a Pandora/Davis station set up in my account...good stuff.

KOB is awesome. There aren't many other albums like it. In terms of style of music, I think of the "in'" Series (Relaxin', Steamin' Workin', Cookin'), maybe Steamin' is closest? You might also try "Porgy & Bess", and "Sketches of Spain". I like the moodiness of the soundtrack to "Ascenseur pour l'Echafaud" but it is not thought of as one of his better albums and there certainly isn't a "great band jammin'" aspect to it that makes KOB so special.

I second/third/whatever the suggestions of the two Bill Evans albums and "Somethin' Else" by Cannonball Adderley. The other CA album I might try is "Know What I Mean" which is an interesting counterpart to BE's "Waltz with Debby."

I'n not really sure how similar or disimilar,but here are two more you might like. "Birth of the Cool" and "Sketches of Spain",both in colaboration with Gil Evans,with larger ensambles,and the orchestration possibilities that implies.

I read what you said about traditional sound,so take this one with a grain of salt. But,if you like Miles Davis,there is an old two LP set transcribed to CD or SACD,that combines, "Four and More" and "My Funny Valentine"-----for me,Miles's solo on MFV is worth the cost of the set.

Happy Listening.