Magento 2 Restrict Products For Customer Groups
https://www.cynoinfotech.com/product/restrict-product-for-customer-group/
You just have to create multiple rules for optimizing the visibility of store for specific customer groups. Moreover, you can redirect the restricted users to another page and display custom error message to them. In some of the case, it may happen that online merchants don’t want to display all the product category, products and catalogue for all customers. All you need to do is install and configure this extension into your online store and deliver impeccable user experience.