Hide "Add to Cart" button for some products, not all products

Hi, I wanted to replace the “Add to Cart” button with “Contact Us” for some of the products, not all of the products.

I have found quite a number of discussions and blogs showing us how to remove the button completely for all products, but what I want is to just hide/replace that for a few products. Please kindly advise if you know how to do that. Thanks so much in advance!

Thanks @Dev_Khaled - I’m not a tech expert so if you could elaborate that’d be very helpful.