The Memberships Report lists every account manager together with their linked members and each person's current subscription. Find it under the admin menu Meal Prep > Fulfilment Reports > Memberships Report (URL /admin/reports/accountmembers). It only appears once account members are enabled (module or a Base/Pro/Enterprise plan) and you have the Reports permission Membership Report. It has no date or delivery-date filter — it always shows the current state.