You can google and check their reviews at trusted website and forums. I could suggest you
AccuWebHosting.com as the excellent Web Hosting provider with highly optimized web server specially for the PHP based CMS such as
WordPress, Magento, Joomla, Drupal etc.
CloudLinux as OS :: Reputable, Secure, and High Speed OS
LiteSpeed as Web Server :: #1 Commercial Web Server - 7x Faster
100 % SSD Drives :: Pure SSD Storage Means Insanely Fast Websites
Also, you don't have to pay $6.00, you can get WordPress Personal plan at just $3.99 /month.