Allen & Heath ZED-6
Personally, Iâ€™d go for the Yamaha MG or Mackie VLZ, but all 3 are good mixer brands to choose from.
The Mackie VLZ series was synonymous for decades with rock-solid reliability. Back when people only swore by Mackie mixers, it was the VLZ series they were swearing by. (that might have way way been before your time)
The Allen & Heath brand is well known in DJ circles, itâ€™s one of the first brands I usually hear when my older DJ buddies talk about mixers.
I can personally vouch for the Yamaha MG mixers. Been using them for 4-5 years for DJâ€™ing, gigging and dance parties. Theyâ€™ve been rock solid and never had any problems even in harsh environments or travel conditions. I would encourage you to get the MG06-X (vs. the MG06) - the extra onboard F/X are useful when room acoustics are being difficult, also useful for singers and other live instruments. If you have the budget the MG10-XU has the most bang for the buck and includes USB Audio (X=F/X U=USB Audio).
One last thing to consider:
You could skip the mixer if you run everything from the laptop. For example, my MacBook runs (Pianoteq, iReal Pro, iTunes, a Metronome and when I used it Piano Marvel) - it greatly simplifies the setup so I only need 1x line out to the headphones or speakers.