I like the NRC plan, but like you don’t particularly care for the app. Nike has the plan in PDF you can follow without needing the app. That’s what I’ve been doing.

Basically it boils down to five runs per week. Two recovery (easy) runs, two speed runs, and one increasingly long long run. It’s a solid plan. Be sure to use the chart in the plan to identify your training paces, you’ll use those when doing speed runs.

I personally don’t like the social aspect of Strava, so I feed everything into Runalyse. The analysis is really good and no social aspect.