There are many ways to do this.
Depending on the specific functionality you’re looking for and the measurement and analytics you need available, some of these options may be stronger than others.
I would personally use WooCommerce, and create free, downloadable products with each of the downloadable files you want to provide, and let WC manage the shop display, archives, downloadable product pages, inventory, account creation and management, etc. WooCommerce also provides many extensions to help extend functionality when you decide you want to add some new features to your site.
I’ve also successfully created similar functionality with ‘Easy Digital Downloads.’
Here are some notes (from Kinsta) on a variety of download plugins you may want to review, as well:
https://kinsta.com/blog/wordpress-download-manager/
