There are many great WordPress plugins available, but some of the most popular and useful ones include:

• Yoast SEO: Yoast SEO is a plugin that helps you optimize your website for search engines. It includes features such as title tag and meta description optimization, keyword analysis, and XML sitemaps.
• Akismet: Akismet is a plugin that helps protect your website from spam comments. It uses a variety of techniques to identify and filter out spam comments, so you can focus on moderating the legitimate comments.
• Jetpack: Jetpack is a plugin that provides a suite of security, performance, and marketing features for your website. It includes features such as brute force attack protection, malware scanning, and image optimization.
• UpdraftPlus: UpdraftPlus is a plugin that helps you backup and restore your WordPress website. It allows you to backup your website to a variety of locations, such as your computer, Google Drive, or Dropbox.
• WooCommerce: WooCommerce is a plugin that turns your WordPress website into an online store. It includes features such as product management, payment processing, and shipping.
• Contact Form 7: Contact Form 7 is a plugin that allows you to create and manage contact forms on your website. It is a simple and easy-to-use plugin that is perfect for beginners.

These are just a few of the many great WordPress plugins available. When choosing plugins for your website, it is important to consider your specific needs and requirements. You should also make sure to choose plugins that are compatible with your WordPress theme and plugins.