The least worst one I have found so far is my Mihado GS short scale electric from Poland. A pic here:
19” scale, intonation is good. I even had them build it with SS frets :-)
Maybe some additional requirements would help the definition of “travel” guitar.
Looks like you can do some sitar shit behind the bridge.The best one I’ve tried so far, that’s truly a “travel” guitar (and not just a small-ish one) is the Strobel. Neck easily comes off so you can pack it in a carry-on (which I’ve done), and easily bolt it back on, tune up, and rock.
Sounds and plays well considering what it is.
A couple pics:
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