Goblal Changes to WordPress page templates?

Hey Guys

With so much incredible talent and knowledge all here in one bubble.

I am sure someone has the answer:

I am looking for a solution to make global changes to WordPress page templates.

I am building a WordPress site with a theme that uses a built-in Visual Bakery plugin.

My site comprises of many 100’s of pages that use similar page layouts besides titles and changes to content , pricing and images.

I use several page templates as a base for my pages with links to 50 individual categories.

I need to make global changes to images, titles, content and pricing.

Is there a WordPress plugin or a way to tweak these global changes to the content and elements of these WordPress templates which will make my life so much more easier and save me humongous number of hours on editing and changes?