Agreed most likely Morning Prayer (Lauds) from the Liturgy of the Hours.
The thing is that a priest is not necessary. The Liturgy of the Hours is part of the liturgy, that is official prayer, of the Church. In a parish where a priest is not available for weekday Mass, it is laudable (no pun intended) to pray Lauds instead, as someone from the laity is licitly able to lead it. In fact the Church prefers that on weekdays Lauds be held instead of a communion service, if no priest is available. There is no obligation to receive on a weekday, but having an official liturgy instead is most beneficial.
I’m all for the Liturgy of the Hours being more frequently prayed in public in parishes. Note that even prayed privately, the LOTH is the public prayer of the Church, but to pray it in public is most desirable, when feasible.