Here is the list of “must have &  go-to plugins list” for 2021! We will constant edit the list to get some updates so please go back periodicly to check for our list.

Manage all your 301 redirects and monitor 404 errors.
SG Optimizer
This plugin will link your WordPress application with all the performance optimisations provided by SiteGround
An eCommerce toolkit that helps you sell anything. Beautifully.
Better Search Replace
A small plugin for running a search/replace on your WordPress database.
All-in-One WP Migration
Migration tool for all your blog data. Import or Export your blog content with a single click.
Wordfence Security
Wordfence Security – Anti-virus, Firewall and Malware Scan
WP Maintenance Mode
Adds a splash page to your site that lets visitors know your site is down for maintenance. It’s perfect for a coming soon page.
WP Migrate DB
Exports your database as a MySQL data dump (much like phpMyAdmin), does a find and replace on URLs and file paths, then allows you to save it to your computer.
Yoast Duplicate Post
The go-to tool for cloning posts and pages, including the powerful Rewrite & Republish feature.
Yoast SEO
The first true all-in-one SEO solution for WordPress, including on-page content analysis, XML sitemaps and much more.

Google Analytics for WordPress by MonsterInsights
The best Google Analytics plugin for WordPress. See how visitors find and use your website, so you can keep them coming back.