It sounds like you went to several physical stores and when their stock on hand was not sufficient you concluded your only option was Amazon. What about the rest of the internet?
I’ve been deeply hooked on Amazon for a long time and trying to wean myself off of it for a variety of reasons. The most helpful thing in this, I’ve found, is Apple Pay.
I happen to use an iPhone and Apple Pay is easy. It is increasingly accepted everywhere, making any online store a one-click purchase. Maybe for you it would be PayPal or Google Pay but whatever your preference is, these payment services have come a long way.
For years I was stuck on Amazon because of the convenience. I am not ashamed - convenience is a real benefit when life is busy. And I had everything set up on Amazon, and they had most things available in their search.
But Google Shopping also has almost everything in the world available and most or all the retailers there accept Apple Pay. So now I just do that. It works just as easily.
You can even search on Amazon and then take note of the name of the seller and search the internet for them and then buy direct. Most have websites because Amazon fees eat into their profits. They would rather sell direct. And easy payment services plus ecommerce platforms like Shopify and Square make it easier than ever.
Amazon is becoming a cesspool of Chinese scams these days. I am tempted to say that I still prefer Amazon because the returns are easy but the fact is that I have HAD to return a lot of things to Amazon because they were not what I thought I was buying or they were just absolute shit quality or arrived broken.
So the point remains: you have alternatives. Use them. If you want physical stores, that’s another matter entirely and I agree those are getting fewer and worse. But Amazon doesn’t always beat them on price. You should check every time and you might be surprised. I was in my local CVS and I saw they had the exact LED bulbs I needed to buy but I thought they’d be too expensive there so I checked Amazon on the spot. CVS beat them by a couple of dollars. So check every time!