Two other nice traditional channels are
Sensus Fidelium and
Return to Tradition (Anthony Stine). It's a "free market" out there, and everyone has their likes and preferences. Sensus Fidelium has rock solid sermons on the spiritual life, mostly I believe from Priests of the Fraternity of St. Peter. In most videos, the Priests are αnσnymσus. I agree it is ideal for Priests to be preaching the Gospel and building up the Church. Priests also are the first who deserve our support, particularly financial support. Dr. Marshall has some good stuff, but no one is impeccable or infallible or beyond criticism. If someone thinks Dr. Marshall's videos aren't helpful, he or she can always watch or listen to something else.
Anyway, a decade after Summorum Pontificuм, and with increasing scandals coming from the Vatican, there clearly has been a huge volume of interest in Tradition and Traditional Doctrine. That's good, and shows the Traditional Movement is growing and winning hearts and minds. That's a work of God's Grace and the result of many prayers and sacrifices. I see it even among many mainstream Priests like Fr. Heilman and Fr. Z. Fr. Z recently had very positive things to say about the SSPX, and Fr. Heilman about the Traditional Liturgy. Things are moving forward, and Tradition needs public spokesmen in order to reach a wider audience. So some of those may be imperfect men, but as long as souls are benefited, I rejoice. St. Paul said some preach the Gospel from less than worthy motives, but as long as Christ is preached, he rejoices. We should too imo.
That being said, there's always a danger of seeking one's own interests rather than the interests of Jesus Christ, as St. Paul the Apostle also says. So if one seeks one's own glory or fame or just money etc and doesn't do what one does for the love of Christ and of souls, one won't have any reward for it from Our Lord Jesus. Not judging anyone, just stating a general principle. Our Lord said the Pharisees do what they do in order to have praise of men. A humble Nun in a Convent somewhere who offers her life for the spread of the Gospel and the building up of the Church for pure love of God will merit a greater reward than one who does external works without that love.
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The Soul of the Apostolate" is a great book that describes how any traditional apostolate should work.
CFN/Remnant/TAN Books etc have all done good work for quite some time too. We have a lot of options to "take our pick" from, as it were. Myself, I prefer sermons, Gregorian Chant and Prayer Videos, and occasionally I watch live streamed Masses online. I actually don't follow Dr. Marshall all that much. I just heard recently that he went to the SSPX during the lσcкdσωns, and he also lost some friends over it etc for defending the Society of St. Pius X.
Three of Dr. Marshall's most repeated words, from what I've seen are probably (1) Pray the Rosary every day (2) Read the Bible every day (3) Find a Traditional Latin Mass, which is quite solid.
Imo, in the next decade, Tradition will have to grow within the mainstream Church, especially by attracting mainstream Priests to Tradition. Dr. Marshall is friendly with many mainstream Priests and could, in time, influence them toward embracing the traditional Mass for their parish. I think there's potential there, and that is good.
Lad, we'll discuss Theology, Eucharistic Miracles and the New Mass etc on the "One Ring" Thread if that's fine. God Bless.