Reddit reviews Shoot: Your Guide to Shooting and Competition (Blood Red Turns Dollar Green Book 2)

Actually, the lady that the article is about wrote a decent book named Shoot: Your Guide to Shooting and Competition, that is a pretty good overview.
She divides the categories up as:

• NRA Precision Sports (service rifle, f-class, etc)
  
• Olympic Shooting Sports
  
• Shotgun Sports (trap, 5-stand, etc)
  
• Handgun Action Shooting Sports
  
• Multi-Gun (3-gun, practical shooting)
  
• Nostalgia Shooting Sports (SASS)
  The examples are my own, but the categories come from her book. It's a good high-level overview.

I would overwhelmingly recommend a book named _Shoot: Your Guide to Shooting and Competition by Julie Golob. It goes over a lot of basics about pistols vs rifles vs shotguns and gives a good overview of different shooting sports and techniques. It’s available on Kindle, but the real book itself is great quality.

If you’re at all interested in hunting, The Complete Guide to Hunting, Butchering, and Cooking Wild Game_, vols., 1 & 2 by Steven Rinella are a great place to start.

This world of guns is a deep rabbit hole filled with fun activity, technical detail, skill building, nerdiness, history, collectibles, legalities, philosophy and inevitably, politics. You can deep dive into any one of these areas and there are nearly endless resources for all of them. Literally too many to recommend a good single one. But reading everything you can is a must, IMHO. If something is particularly motivating you, more recommendations would be happily given.

What do you want to learn and/or practice?

• Do you want to practice your pistol marksmanship fundamentals, and shoot increasingly smaller groups and increasingly longer ranges?
  
  
• Do you want to practice shooting non-standard shooting positions (ie left-hand only, right-hand only, kneeling, prone, target to the side, around barricades/walls)?
  
  
• Do you want to work on malfunction clearances? Rapid follow-up shots? Shooting and moving, or shooting on the move?
  
  Without a specified goal, I would suggest a skills progression as described in the Pistol Skills series of classes (local OK instructor), or a beginning-to-advanced skills progression described in a learn-to-shoot book like Shoot by Julie Golob or Jake Maloney's Guide. Learn and practice (and master) the basic skills.
  
  Dropping in at the range on a random weekday afternoon, you chances are hit-or-miss of having an available unscheduled instructor available. One side of the coin is that you're only looking for instruction & feedback on pistol fundamentals (flip side says that there may not be folks on staff, at that time, with the appropriate knowledge/experience/disposition to provide even basic instruction). If there is an instructor available, work ahead on your list of skills to learn. If there is no instructor available, conduct focused practice on the skills you have already learned/been taught.
  
  Useful links:
  
  
• Video: Front Sight Focus
  
  
• PDF: Drills for the Public Range