Getting the titles from each post in category pages

In my category page I have a buy now button for each item, it currently doesn’t work because the only way the buy now button works is by using the the title of the page for the product so therefore it only works on individual posts.

How can I grab the title of each post listed in a category page so that I can make this work?

Here is a sample page:

https://genpowerusa.com/test/parts/automatic-voltage-regulator/leroy-somer/