Amazon currently has the Anker Wireless Charging Pad priced at just $17.99. That's down from $25.99, which is good for $8 off, but only when you use the promo code ANKER253 at checkout. That's a great price for a really good wireless charger. This price is going to be good now through March 5th.
This wireless charger from Anker is a Qi-enabled Wireless Charger. That means it's going to work with basically any smartphone that supports wireless charging. That includes the Samsung Galaxy S8, Galaxy Note 8, LG V30 and many other smartphones (even the new iPhones). This is a charging pad, and not a charging stand, so you can just place your smartphone down on it and it'll start charging. There are also LED lights all around the charging pad, so that you can see when the phone is being charged, versus when it isn't.
This item is also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $99/year (or $49/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.