As our respected colleagues stated their expert view on this topic, I think there are some unique websites that particularly developed to compare laboratory chemical products or pieces of equipment. I personally use the following links to do this whenever we're gonna purchase something for our lab.
The to go to website is Biocompare but a few weeks ago I came across a new website. www.labettor.com. The website is in beta-phase but it already looks awesome! You can search for an experiment and then compare products that are useable for that specific experiment.
As our respected colleagues stated their expert view on this topic, I think there are some unique websites that particularly developed to compare laboratory chemical products or pieces of equipment. I personally use the following links to do this whenever we're gonna purchase something for our lab.
This suggestion is specifically for antibodies, but https://www.benchsci.com/products/ai-assisted-reagent-selection is a great resource to directly compare vendors and allows you to sort by pretty much any feature you like.