Usually the first type of arpeggios jazz guitarists learn are 7th-chord arpeggios and this makes sense because that’s the sound of jazz. Triad arpeggios are usually next, when studying upper structure triads. We also study 7th-chord arpeggios with added tensions such as the 9, 13, b9 etc. Django Reinhardt used a lot of triads in his solos, but he also mixed triads with tensions.
Here are 2 examples of such arpeggios.
The first example is an A major triad with an added 9. The recording doesn’t sound gypsy style because I’m not really into gypsy jazz, but I use gypsy jazz ideas in my own playing. By not playing the 7th, you get a different sound and other melodic posibilities. The notes are: A C# E B
The second example is an A minor triad with a 9. The notes are: A C E B
Here’s how these kind of arpeggios sound like, first the major 9, then the minor 9:
To learn more about gypsy jazz, check out this lesson: Gypsy Jazz Guitar: Melody & Improvisation