AINOPE US via Amazon has Ainope 60W Dual Port (PD 30W & QC 30W) Compact Metal Car Charger (Black) for $14.99 – 10% off when you clip the coupon on the product page – $4.50 when you apply promo code 30NHWM7D at checkout = $8.99. Shipping is free w/ Prime or on orders $25+.
Note: Coupons are usually limited to one per account.