The Irish Jesuits' "Sacred Space" daily prayer website has an online guided Advent Retreat to help people's Advent preparation for Christmas. It is a way to have your own personal advent retreat from home, using the priests' guidance through the website as a guide.
Sacred Space has offered an Advent Retreat and Lenten Retreat online for the past few years. The latest newsletter at Sacred Space (Latest Space #20 for November) mentions that Fr. Brendan McManus, S.J. has added thoughts for the Advent Retreat. Father McManus is new to the Irish Jesuit Communications Centre.
The opening page of the Retreat offers thoughts on the meaning of Advent, hope and expectation, waiting for Christmas. It also offers suggestions for making a personal day of reflection. These are worthwhile reading with or without the guided Retreat.