Just found the "First Person Defender" series that takes regular "good guys" and puts them in an intense, real life, self-defense situation. They use Simunition guns and ammo in force-on-force training to see what works, and what doesn't. Check it out. Here is the channel and latest episode.
POF makes premium ARs that are worth checking out. Why? Their MD compliant Renegade+ DI rifle weighs in at 6.3lbs for starters and the 7lbs piston driven P415 Edge rifle (my preference) will run all day long and clean up easy peasy. Check out more here.
But they aren't HBARs?!? Right, and...
The Glock 45 (essentially a 17 with a 19 slide) is an excellent choice for folks with larger hands. The Glock 48 is a slim 19 and the 15-round mags now available from Shield Arms make it an excellent choice for readers in border states.
Rob Pincus
You can find lots of older stuff from Rob Pincus on YouTube. Consider https://www.youtube.com/watch?v=7KnmvmYfmY4 and https://www.youtube.com/watch?v=eca_pzHIzw4.
You might want to sign up for a free account at https://www.personaldefensenetwork.com/ and you'll get a coupon...