It depends on the need of domain. It varies according to your work area. Knowledge of incorporating different types of plug-ins is a great way for smoothing the improved functioning of your WordPress blog post and pages.I have done an in-depth exploration of all most popular plugins and concluded with top 8 optimum plug-ins for the best result of your work.1. Yoast SEOYoast SEO is one of the most used WordPress Plugins for SEO purposes. This plugin provides tools which help you increase your position in search engine results. This plugin also helps you analyze content on web pages and blog posts, and makes suggestions to fine-tune your search engine optimization.2. LambdaTestThe LambdaTest WordPress plugin can be used to take full page screenshots of posts and pages across different desktop and mobile browsers right from the WordPress admin panels. These screenshots will fast-track cross-browser compatibility testing of web pages and websites hosted on WordPress.3. Debug BarThis plugin will help you track all the activities going on in your web page or blog posts. This plugin adds a troubleshooting menu which contains the query, cache, warnings, and debugging information. It can be hard to notics bugs on a website; using Debug bar we can keep our eyes peeled for signs and warnings coming up on web pages.4. UsersnapUser feedback is gold for web development companies. The importance of feedback is to know what you are doing right or wrong, so you can improve your offerings for your clients. So, itu2019s a good idea to see what your users, friends, and anonymous visitors think of compontents of your site you never would have thought were wrong. Sometimes managing this feedback can become stressful for people. The UsenapWordPress plugin will help you reduce the stress of managing feedback and focus on working on all negative feedbacks.5. Theme CheckItu2019s very important to stay up-to-date one the latest WordPress theme review standards for your website or blog page. Themes are requisite components that a creative agency and web dev company include into the design of web pages and blogs. The Theme Check plugin will help you by automatically running all the tools on your theme that Blog Tool, Publishing Platform, and CMS uses for theme submission.6. CSS HeroCSS is a very important part of the web development process. CSS gives a great visual appearance to your website. For accomplishing great user interface of web pages, knowledge of how to write lines of code in CSS is a must. But donu2019t worry if you are not into CSS, CSS Hero is here for you. This WordPress plugin ships with awesome features such as a top-notch color manager, special effects, 900+ Google fonts, ready-made styles, and theme skins.7. User SwitchingSwitching between user accounts for different blogs in the WordPress platform can be a stressful thing. And, as the name User Swithcing suggests, this plug-in is here to help. Nobody likes to log in and log out again and again for accessing pages on WordPress. This plugin allows you to quickly swap between user accounts in WordPress with the click of a button. This will help administrators who need to hop between different accounts.8. WordFenceWeb security is very critical in the tech world nowadays. Cyber breaches may cause harm to the whole organization. As a developer, you need to take care of your website.WordFence will help you shield your web pages by building a firewall and malware scanner. The malware scanner checks core files, themes, and plugins for malware, bad URLs, backdoors, SEO spam, malicious redirects, and code injections.May be this will be of help!!SaifI work at LambdaTest!!