Amazon is currently discounting Anker's popular PowerWave wireless charging pad, which is currently priced at $15.99, and that is down from its regular price of $23.99. That is only when you use the promo code ANKER1599 at checkout.
This wireless charger from Anker is capable of doing fast charge up to 7.5W. That sadly means that it does not support the faster wireless charging that Samsung uses on its smartphones. But you will still get the full 7.5W on the Galaxy S10, so it's not the end of the world. It's also still backwards compatible and works with the LG G8 ThinQ and Google Pixel 3 at a slower 5W speed.
Getting a fast wireless charger for this price is actually pretty impressive, but there is a caveat. There is no AC adapter included, you are just getting the charging pad and the micro USB cable for this price. But that shouldn't be an issue, since you can use the AC adapter from your phone with this wireless charger. If you want the full 7.5W charging speed, you're going to want to use a Quick Charge 3.0 AC adapter with it.
You can pick up the Anker PowerWave wireless charger from Amazon right now, using the link below.