iPhone SE: The iPhone SE came out just this past March. It has the same size and form factor as the original iPhone 5S. With that said, if you are looking for a good case for the iPhone SE, simply type in “iPhone 5S cases” on Amazon or Best Buy’s website. Since you would be typing in an old iPhone’s cases, the fact that this iPhone has been discontinued by Apple, it makes the cases cheaper. Also, since the iPhone SE is basically an iPhone 6S crammed into a 4-inch phone, you would be able to get a cheaper case for your iPhone SE this way.
iPod Touch 6th Generation: Similar to the iPhone SE story, simply go to a website and find iPod Touch 5th Generation cases. Yes, it will still include the Loop hole from the previous generation, but if you can get past that, it’s the best way to find cheaper cases for this product.
iPhone 6S: Some are probably going to end up disagreeing with me on this, but if you find an iPhone 6 case, chances are pretty high that it will still work for the iPhone 6S. The 6S is a little bit thicker, but only by 0.2 mm, so in the end you’re still saving some money in the process.
These are just a few ways how to save money on Apple products. I believe that your best bet is to find and order these accessories on Amazon because they typically have the cheapest prices out there. If you’re looking for an in-store option, Best Buy, Walmart, and Goodwill will be the best ways to save on these accessories.