Magento 2 Guest to Customer Extension - Cynoinfotech
https://www.cynoinfotech.com/product/guest-to-customer-magento-2-extension/
Many time customers don’t shop from the online store because they will be forced to create an account during the checkout page. And the most important part is that if the store owners do not interact with the customers, they won’t come back to you store again.

As a result, Guest to Customer Magento 2 Extension comes into the picture. This extension allow the visitors to shop from your online store without creating any account. Therefore, this module must be incorporated into your online store because it keeps your customer in touch.

Also, with the help of this extension, you can gather information about the customer database. Based on that, store owners can offers personalised services on their next visit considering their tastes, preferences and desires. In fact, this extension lets you build healthy relationship with your customers that makes them feel heard and connected.

Guest to Customer is an advanced Magento 2 Extension that helps you in creating an account for return users so you can place an order right from the backend. This advanced feature has been developed by BSS Commerce that contributes crucially in automatically creating new accounts for the unregistered customers after the checkout.