Yes, the wonder wand glide does exist.
I will say though, if a guy is truely asking for the best wand, you would be of course talking about performance first, comfort second, and price third.
A 2" tube is a must, you can have less that is fine but know it's less and settle for second best.
You would want a very low profile wand head design with 4 jets minimum, and those would be 1" off of the carpet, and they would have anti-drip checkvalves, and the jets should be angled so that the spray was pointed towards the glide at roughly a 45º angle.
This same wand would have high flow jets for some serious rinsing, not "misting" of the carpet. The forward angled jets would also prevent overwetting and allow good rinsing of the face fibers without pentrating the backing causing extended dry times and wicking issues, it's not a small point it's an important point. This also allows for cleaning at higher pressures but safely, you also get a fair bit of aggitation form the higher pressure, that alone is worth it.
The vacuum head would have a high airflow design that equalized the pressure across the full width of the head, it would not be of an archaic design where the tube abruptly enters the rear of the head and forces all airflow to make a hard 90 degree turn, this old design makes for strong vacuum in the center and weaker vacuum on the edges, needless to say this is how most wands are made still to this day. So look for a "manifold" or chamber that equalizes the vacuum, you can see this on the backside of a titanium wand for example.
Without a doubt it would have a properly fitting glide, custom made for that wand, you would not put a Ford part on a Mercedes, yet that is what is being done with some glides still to this day, get one that fits perfectly, it's not an option, it's required to work properly.
Assuming you have the low profile wand basics worked out, now you can focus on comfort and safety, you would like to use heat some day, so you don't want a Metal solution line to burn your hand on and radiate heat from, you would want a thermoplastic solution line, preferably with a teflon core, a stainless braid and possibly a urethane jacket, but at least get a thermoplastic line. Don't settle for a ridgid metal sol. line, it's a safety issue, the first time you leave a 220ºf line on your forearm you'll be rememebering this post.
Finally you would want a comfortable easy pull short reach valve, this is a small detail that is very important, since you will squeezr this valve thousands of times, cutting the pressur required to actuate the valve and the distance to reach to access the trigger ends up being a huge help in reducing your daily work. while you are at it get a proper rubber sleeve for the handle of the wand, most come with a cheap vinyl slip on sleeve, these slip around when the tube gets warm, heat shrink poly tubing will serve the purpose better, oh and get a rubber dipped forward handle, it's just more comfortable than a plain jane naked metal handle.