I’d recommend using the default vdroop setting and adapting voltage control. Start at 1.200 volts and go from there… I’m running this combo, 13700KF and Z690 Dark KingPin… honestly your all core load is going to be thermally limited depending on your intended use… I’m able to hit a 5.5Ghz all core load at 1.280volts (after vdroop) but required Liquid Metal to manage heat. Not the limit of my CPU but going for 5.6Ghz all core requires a pretty big jump in voltage 1.35v’ish... And 5.7Ghz all core for Cinebench R20 required a lot of voltage (1.45v) for fun runs only... and the amount of heat goes way up… but at my current settings I can have light couple core load hit 5.8ghz as well… depends on what you’re looking for…

I also have my E-cores at 4.5Ghz but they needed a bump in voltage as well (1.300v bios setting with adaptive setting).

PS. --- Be mindful that these things OC'd do pull a lot of power if you plan on fully loading it... See results from Cinebench (not the highest load that can be used) below, hit 340watts....  Honestly, you using air cooling, just leave it stock clocked and look at under-volting... If you aren't hitting thermal limits, you'll average higher clocks overall...

Managed to hit 4th place on HWbot's site for 13700KF's.... 
 
Cinebench - R20 overclocking records @ HWBOT

Keep in mind adaptive Vcore will allow the voltage to drop at lower loads and is said to be better for long term life of the CPU… So they say… Override sets the voltage and keeps it there all the time. Not much of an issue other then it’ll make your idle/low load power usage go up… being as you’re on air-cooling, you’ll hit thermal limits pretty easily when running Prime95…

The z690 Classified seems to be a little odd with adaptive voltage still. I have the best results with the Adaptive setting, but leaving the voltage on "auto". I'll explain in a bit, but thought I'd give you some background:
 
If you're looking for the best all-core overclock you can get, you'll want to run override mode and sacrifice a little bit of single/dual-core higher clock-speeds. The override will force a constant voltage to the CPU cores. This is the easiest and probably best way to actually control the voltage and try to reduce power for a higher all-core overclock. 
 
If you're looking to run 1-4 cores at much higher clocks and willing to run a slightly lower all-core overclock (which is more suitable to games, but often less suitable to benchmarks and some rendering workloads), than adaptive with V/F curve adjustments is the ideal setup, but this is really quirky on the z690 Classified. Skatterbencher has some really good information on this, but his guides are not really for EVGA boards and we don't have a way to adjust the AC-DC load-lines or even a way to tell what the V/F points actually are in the EVGA BIOS (you can set offsets, but it doesn't tell you what the default voltages are for your CPU). This leads to a lot more trial and error and frankly, I can't set any adaptive voltage without it causing an increase in voltage and power to the CPU. If I leave it on "auto", the board actually does a pretty good job keeping the voltage and power reasonable. Any time I try to change that setting, the power goes up dramatically. So what I end up with is setting FLL Override on mode 1, Vdroop at -75%, and then adjusting the V/F points slightly. How much you adjust them and at what points is going to depend on your CPU, and your mileage will vary. You can see in HWiNFO64 that the offsets are working, but it's a little random and depends on seeing the cores run at those frequencies at the time (or it will just show min/max, etc.).
 
I have tried some other options, but for running my 13900k at 6GHz on 1-4 cores, 5.8 on 5 cores, 5.7 on 6 cores, 5.6 on 7 cores, 5.5 on 6 cores, 4.6 on e-cores, and 4.6 cache (which seems to yield better scores and more stable results than 5GHz for some reason), the above adaptive settings give me the lowest power and temperatures of any I've tried. I could get 5.6 or 5.7GHz all-core to have lower temperatures if I ran it on override, but then I can't hit 6GHz on a few cores and be stable for all workloads when tuned for all-core override settings. I was running 5.6 on 7 and 8 cores with the adaptive settings when I first set it up, but did some testing back and forth and found no benefit in games, especially when under most conditions the games were running on a few threads that were boosting to 6GHz, so I dropped it back to 5.5 all-core for 24/7 use as it drops power load a bit. I like to do some benchmarks, but primarily use my computer for gaming and the adaptive setup above with hitting 6GHz on up to 8 threads seems to be a reeeeally sweet spot for my CPU, so that's what I do. In most games the thing rarely gets over 115W average too. I had BF2042 hit a peak of ~240W the other day, I suspect while loading a map, but during gameplay it was nowhere near there.