Better Register

I admit it, Drupal login system never liked me :)

User names that allows spaces, the user cannot set the password when registering if you have email verification enabled, and so on...

Better register module will improve the user registration and login experience, according to 2017 best practices.

Features

• Remove tabs for login, registration and password recovery pages.
• Remove user name from registration form and use the email address for login.
• Asks for the password in register form but only once.
• New email verification system that allows the user to login and verify his address later.

Setup

After installing the module as usual you must go to Account settings (admin/config/people/accounts) set the setting Who can register accounts? to Visitors, unset Require email verification when a visitor creates an account and modify the Welcome (no approval required) message to something like this:

[user:display-name],

Thank you for registering at [site:name]. You may now verify your email address by clicking this link or copying and pasting it into your browser:

[better-register:confirm-email-url]

After verify your email address, you will be able to log in at [site:login-url] in the future using:

email: [user:mail]
password: Your password

-- [site:name] team

Bibliography

https://www.truconversion.com/blog/conversion-rate-optimization/8-tips-t...
http://usabilitygeek.com/5-registration-form-usability-guidelines/