Those seven are all timeless classics. I would suggest not parting with any of them because those are all proven designs that are well understood and appreciated. While those guns are not each of them suitable for every purpose, there is no junk in that list. While those are also all top-notch brands, there is nothing in that list that has more value on the used gun market than what they ought to have for you in both utility and sentimental value.
In my opinion, the Walther is the least suitable or practical for learning with -- it's best known as the choice of James Bond, but otherwise, it has a somewhat heavy slide to rack, a substantial amount of recoil due to the direct blowback action, and a marginally effective cartridge. It certainly has a "cool" factor, but would be the least practical to take to handgun classes for example.
If the S&W .357 is a small, short-barreled revolver, then it is similarly a poor choice to learn with, but if it is a larger revolver with a longer barrel, then it is one of the best.
The 1911 and 96A are standard pistols that are both excellent to learn with -- and importantly they give you a single-action (SA) pistol as well as a double-action/single-action (DA/SA). Along with the double-action (DA) revolver, your little collection includes one of each action type. As you learn handgun manual-of-arms, you will probably develop a preference, but it's very good to have one of each to develop that preference from personal experience instead of the opinion of other people.
The two shotguns are potentially excellent choices for home defense or bird hunting. While you may not be interested in hunting now, you might be in the future, especially if a friend decides they'd like to include you in their past time. Bird hunting is one of the most accessible types of hunting because it typically doesn't require winning a tag lottery, costly tags, or out-of-state license fees, etc. The suitability of a shotgun for a particular purpose depends on the action type and choke. Double-barrel, pump, and semi-auto actions can all be used for most purposes though. A fixed full choke is less than ideal for defensive use and it might not be compatible with steel shot for waterfowl. Learn more about your shotguns to see what they might be best suited for.
The .30-06 is certainly an effective cartridge for any kind of big game hunting other than a few of the largest African game animals, but if you're not hunting big game it was originally designed and intended for anti-personnel use as the US army's standard rifle cartridge. Maybe you can't imagine a situation in which you'd use a rifle for personal protection, but anybody who has been in combat will tell you they'd much rather have a rifle in a fight than any handgun. Most people will never use a rifle for big game hunting or personal protection, but is there an able man alive who ought not to know how to use a rifle anyway? The .30-06 is not expensive, but it is probably too costly per-cartridge to use to learn marksmanship. Most people use a .22LR, a .17 HMR, a .223, or an AK or SKS (7.62x39) because of the cheap ammo. You can also learn with a high-quality air rifle. But the .30-06 is the sort of thing that many people practicing with another rifle are preparing to use with skill.
Get some more advice on how to get started learning -- learn handgun in a defensive handgun class. Learn wingshooting at a trap or clays range. Learn marksmanship at an Appleseed event. Your collection affords you a nice gun for just about any purpose or discipline. You've got no excuse not to learn.
