Assuming this is an established website, my SEO process looks something like this...
TECHNICAL SEO
This is where my SEO process starts when taking on a new project.
Why?
You might be targeting the best keywords, have a spotless on-page optimization, your content might be written by world-class writers, have the strongest and most relevant backlinks pointing to your site but, if search engine spiders have a hard time crawling and indexing your site, none of the above will matter.
At least, that´s how I see things.
So, I am going to leave here some youTube resources I have bookmarked about this topic...
A Basic (Yet Powerful) Technical SEO Audit for Beginners by Ahrefs
How To Do an $800 SEO Audit Without Spending a PENNY by Chase Reiner
Technical SEO For Local SEO Client by Chase Reiner
How to Make a Full Technical SEO Audit by Ian Lurie by Serpstat
How to do an SEO Audit - Full SEO Tutorial for Beginners FREE by Josh Bachynski
When it comes to Technical SEO audit, Chase Reiner has some of the best "over the shoulder" video tutorials you will find on the internet and, they are free to watch!
ON-PAGE SEO
On-Page SEO Checklist: How to Optimize for Search Engines by SEMRush
ON-PAGE SEO: The Definitive Guide by Backlinko
COMPLETE ON-PAGE SEO CHECKLIST by Ignite Visibility
[GUIDE] Full Example of How to Do On-Page SEO by
@splishsplash
[FREE] Get an On-Page advice for your site by
@ynotfins (Thread is closed but, there are some great advice in the comments)
KEYWORD OPTIMIZATION
[Method] How to find unlimited low-competition affiliate keywords for free by
@seocrab
[Method] Using Ahrefs to find Weak Competitors & their Keywords by
@RealDaddy
[Ultimate Guide] How to Analyse SERP and Keyword Competition by
@Holzr
Keyword Difficulties by
@MisterF
Lastly, I can´t stress enough how amazing
this ebook written by
@RealDaddy really is. If you have access to Ahrefs and you´re not familiar with keyword research, I highly recommend you to get it!
CONTENT OPTIMIZATION
How to write a blog post for SEO: The complete process for writing that ranks by Orbit Media Studio (Andy Crestodina)
LIVE Content Audit ($2,497 Value) by Nathan Gotch
Content Optimization: How to Optimize Content for SEO by Contant Content
How to Create Perfectly Optimized Content: 16 Essential Elements by Search Engine Journal
Blog SEO: How to Search Engine Optimize Your Blog Content by Hubspot
BACKLINK PROFILE ANALYSIS
How to Do a Basic Backlink Audit (in Under 30 Minutes) by Ahrefs
How to Do a Backlink Audit in 5 Simple Steps by SEMRush
COMPETITORS ANALYSIS
Free SEO Competitive Analysis & Competitor Keyword Research Tutorial by Surfside PPC
Competitive Analysis: How To Hack It In 6 Steps by SEMRush
How To Steal Your Competitors' SEO - Best SEO Tips Ever by Miles Beckler
How to Do an SEO Competitor Analysis [Template Included] by Ahrefs
Conducting a Competitive Analysis – the ultimate 2020 guide by SEOBuddy
OFF-PAGE SEO
What Is Off-Page SEO? A Comprehensive Guide by SEMRush
15 Must Know Off-Page SEO Techniques for 2020 by ECHOVme
The 35 Most Effective Off-Page SEO Techniques (According to 98 SEOs) by Databox
Best On-Page and Off-Page SEO Techniques in 2019 by
@Finn
I hope this helps!!
MERRY CHRISTMAS!