WP101

The fast path to easy

Astra: Most code efficient, fastest performant WordPress theme
https://wordpress.org/themes/astra/

Elementor: Click, and drag, what you see is what you get (WYSIWYG) editor that makes WordPress function like Wix, or Squarespace
https://wordpress.org/plugins/elementor/

Astra Starter Sites: 100 prebuilt sites you can import with one click
https://wordpress.org/plugins/astra-sites/

Marketing plugins

Ninja Forms: Customize your form submissions, get email notifications, and a sortable database of all submissions
https://wordpress.org/plugins/ninja-forms/

Jetpack: Monitor traffic, and offload static content to a Content Delivery Network (CDN)
https://wordpress.org/plugins/jetpack/

SEO (Search Engine Optimization)

On-Page: Page titles, headers, and content mindful of target keywords

Off-Page: Backlinks from other sites to your site. SEO is like voting, and considers quantity, and quality. Source relevance matters

Quality Content: There is no substitute for well-written, relevant, quality content

Backup clone migrate

UpdraftPlus: Backup an entire WordPress site to a single file that can be imported to a new WordPress host in one click. Procedure is to install plugin on old host, run backup, download file, change DNS A Record, install plugin on new host, run restore. Free version does not allow domain name change, $30 migrator version does allow domain name change.
https://wordpress.org/plugins/updraftplus/
https://updraftplus.com/migrator/

Clone: Direct clone from one running site to another. Requires name change because old, and new hosts must be simultaneously reachable.
https://wordpress.org/plugins/wp-clone-by-wp-academy/