@inquiringmind ,
As per your request for a rifle, a shotgun & pistol are highly personal preference things.
Many fine pistols & shotguns out there. But finding what you like & what fits you are what matters.
If looking for another semi-auto shotgun, i really like CZ!
I picked up a CZ 720 the other year, new for $469.
Fit & finish is excellent. Balance is nice. Shoulders well. Is accurate. And i've had zero issues with it!
Comes in a nice plastic hard case. Barrel & stock are further protected in the case by faux blue velvet sleeves. Comes with 5 chokes & choke wrench.
Really hard to beat, especially at the price point!
I have a H&K VP9.
These are not compact pistols by any means!
But lately, it's my most grabbed carry pistol. (I'm not a small guy).
It's been pretty accurate with all bullet weights & designs.
Best thus far is the 125gr Sig V-Crown bullet.
Easy take down for cleaning. And the slide release is ambidextrous. It is easy to rack the slide on, and has "wings" on the back of the slide to aid in that. They also help to grab your belt if you should need to rack it one handed.
I also have a Walther PPS gen1.
Small "micro" pistol. It's a single stack 9mm that holds 7 rounds.
About the size of a Shield or Glock 43.
Very accurate! Shoots everything you feed it also.
Comes with different backstraps that you can change out in seconds with no tools to fit a variety of hand sizes.
Drawback ( as with a lot of short barreled semi-autos) is the slide is stiffer to rack than the VP9.
Special note on the VP9 & first gen PPS.
Both of these pistols have the "European" mag release.
The mag release is built into the trigger guard. Not the "American" button on the grip.
They are easy to operate, just takes some getting used to.
I found i can change out magazines faster with them that the button type by using my middle finger on my trigger hand.
Another option for you may be the FN 509c.
I just picked one up used for under half the price of new.
Smaller than the VP9. But the slide racks just as easily. Fully ambidextrous.
Shot it for the first time yesterday.
My friend & i had a blast with it. Put 300 rounds through it. Shot everything we fed it well!
And now the important part of owning/carrying a pistol!
The holster...
This is so highly personal preference i'm not going to mention a brand!
You can only figure this one out with experimentation.
Best of luck & post up on what you got!!