I follow the Gelug School from Tibetan Buddhism. The practice is a lot of study actually and reflection and meditation of that. We study texts of authors like Arya Nagarjuna, Lama Tsongkhapa, Shantideva and so forth... The meditation is analytical but we also practice Shamatha (single pointed concentration) as a fundamental practice. And we also study psychology and logic.
The foundation is what is called the "Three Principal Aspects of the Path", which I think it should be the same of other Mahayana schools: Renunciation, Bodhicitta and Wisdom of Emptiness. And all the meditations and study that comes from it
And after a solid foundation of these three is built then comes the practice of Tantra, which I can't say too much because I haven't reached that point yet.