You may want to try the Mcmillan training and race calculator to give you a guide what are your training paces range for speed interval, Cruise interval , easy days , long run....etc... They need your recent race time or time trial and a goal you want to achieve. No HR zones, just pace base.
https://www.mcmillanrunning.com/dashboard/
Some thoughts on the calculator since I did some comparison with the Vdot one:
Endurance pace: McMillian wins. Easy from Vdot gave: 5:39 ~ 6:13. Easy from McMillian gave: 5:05 - 5:43
The latter is more accurate. Long run pace is slightly slower than the easy run pace since it's supposed to be longer. McMillian also shows recovery jog pace, but this can be classified the same as easy, perhaps the slower range of easy rather than being a category of it's own.
Stamina pace: McMillian wins again. They have more detail on steady state and tempo pace range, but vdot gave a specific threshold pace number.
Speed pace: Vdot wins. I find McMillian calculator being relevant only for the faster limit of the 600/800m. For the 400m, it is too slow. For 1000 - 1600m, it's basically a faster tempo but not quite goal pace. For simplicity, Vdot, provided the specific pace to hit for their intervals which matches the faster limit of the McMillian calculator.
Sprint pace: Both are right. Vdot gives the specific pace to hit for their 400/600m intervals. McMillian gave a pace range which can be considered as the safe limit to hit for intervals. Go faster than the pace range and it might affect your subsequent runs. Go slower than the pace range and you willn't be pushing hard enough. I will use this to hit Vdot pace but at the same time don't go too fast/slow based on McMillian pace range.
Race pace workout: Not accurate since the workouts they prescribed are based on the goal pace. If you run to hit the goal pace, then you'll likely run slower. It makes sense to run based on their training pace than their race pace workouts.