Magento 2 Customer Group Catalog | Extension by FME

Controlling the access of your store is an important aspect. Determinging who to access what part of your store is what helps you achieve targeted customers. For example, there is no point retailers accessing products which are for wholesalers. Magento 2 customer group catalog offers an easy solution. It allows you to block products, categories, or CMS pages by customer group.

You can create multiple customer groups and rules to determine which sections of your store they can access. This way you can hide products from specific customer group. You can either display a customer message to restricted users or redirect them to another page. 

For details:  Magento 2 Customer Group Catalog