I have recently discovered liquid acrylics! If you have never used them as a medium, I highly recommend giving them a try. I love the watercolor-like affects (see green wall in my painting Man with Dog, 2017 below). I have been using the brand Golden, their "high flow acrylics" range.
Watercolor can be a challenge, in that it's difficult to paint layers without the work becoming "muddy" and over painted. With liquid acrylic paints, you can easily layer your work, because each will dry and cover the others really well!
You can see in the are of the green wall in my painting that I was able to thin the paint, which enhances the painterly effects. This is what is so appealing about watercolor, seeing the brushwork and letting the light from the paper's surface shine through.
I also tried using Golden's Acrylic Glazing Liquid, which thins the paint, but found that my brush strokes became too prominent. You have to be careful about using too much water, as it can cause the pigment to separate and adhere less strongly to the paper.
Here's a close-up of the face on my figure. I loved the fact that I was able to get coverage as well as translucency!