the Dorian mode is a great choice for adding colour to guitar solos in those particular styles. It's a minor mode and a close cousin of the Aeolian/natural minor scale, differing on just one note ...
Two of the most common used by guitarists are the minor pentatonic (1-b3-4-5-b7) and natural minor scale (1-2-b3-4-5-b6-b7), also known as Aeolian mode. There are other scales, such as the Dorian ...