Many people nowadays struggle to keep in touch with friends. Let me share my system that works for me and many of my closest contacts.
Rather than struggling to allocate time specifically, I maintain a list of people I call regularly. When an opportunity comes up, like a longer drive or a walk, I see who fits the mood and is available. I keep being surprised how glad people are for me to call them. Since I do it at my convenience, everybody is happy and I almost always have somebody to talk my thoughts over with.
This works most easily when I am with my family with the obligation to walk the dog every day. Because then I usually get outside at least twice a day, with ample opprtunity for a run, listening to music and podcasts, talking to people and enjoying nature.
This is my way of having regular walks with friends, bridging any distance without painful scheduling.