How can one find a religious girl for marriage, and should one resort to a devout imam or to Sharia schools for this, and what is the way given that many do not adhere to the prophetic methodology?

To find a righteous wife, it is advisable to rely on Allah (tawakkul) and supplicate, to have the intention of chastity through marriage, to consult people of religious knowledge and sound opinion, to perform Salatul-Istikharah (prayer for guidance), and to seek a woman of religious commitment regardless of her family's religiosity.