If you know where to look, there are often some great discounts available on Apple’s popular — yet oftentimes expensive — AirPods. Since Apple launched the third-gen AirPods last year and unveiled its new lineup, we’ve seen the starting price of the second-gen, entry-level model drop from $159 to $129. What’s more, we’ve seen many retailers heavily discounting the second-gen AirPods as well as the more expensive AirPods Pro and Max, which offer noise cancellation and better…