Using these Magento 2 custom registration fields the admin can create custom fields and collect almost all information that is required. It allows the customers can update information from my account section and admin panel.Visit Here: https://store.webkul.com/Magento2-Custom-Registration-Field.html

Custom Registration Fields for Magento 2

Custom Registration Field For Magento 2 will allow the admin to create custom registration fields for user or customers. Using this module you can extend your customer sign up form.