In the fall of 2017, I'll be producing a series of videos about Serato, and another series of videos about Traktor (plus some advanced Virtual DJ tutorials).
And in the meantime, here are the Soundcloud links for the two mixes that I created with Virtual DJ in those two demo videos. SHG 351 is tech/house/techno, but with an emphasis mostly on upbeat house and tech. SHG 352 is a slightly darker and more techno-oriented mix.
You can find track listings for each of those mixes in the description on SoundCloud, and you can also see them track-by-track as you watch the two videos.