Jesus - they don’t even name the report so interested people can search for it. Lame.
Also, least-intrusive doesn’t mean most-trustworthy. Just don’t use any of them or, if you do, be sure to take all steps at your disposal to not give any personal information to them.
Maybe a small piece of personalised luggage for the holiday. Does she wear makeup? Maybe a nice makeup case with her initials on it.
If that’s not her thing, what about something for your home (assuming you live together)? My wife and I tend to buy ourselves the “bigger” things for Christmas, as our gift to each other - some furniture we’ve been wanting, or similar.
If that doesn’t sounds like you guys, there’s the tried and true jewelry option. Or maybe just cruise Etsy for the sorts of things she likes (does she like knick knacks, or ornamental stuff?) that might be customisable.
Failing that, have a think about what makes you special as a couple. Is there a shared interest or experience that got you together or you always talk about? Is there something in that?
Finally, I’ve been holding on to some ideas for future inspiration should I need them: