The only Marian Feast I can find for today seems to be unverified, in other words, I can find absolutely no references online relating to this invisible Shrine. There is also a Marian Title relating to the Orthodox Church which is not recognised by the Catholic Church.
St Mary of Magdala “The Apostle of the Apostles” (St Thomas Aquinas), Penitent. During the Middle Ages, Mary Magdalene was regarded in Western Christianity as a repentant prostitute or promiscuous woman, claims not found in any of the four Canonical Gospels.
About St Mary:
https://anastpaul.wordpress.com/2017/07/22/saint-of-the-day-22-july-the-feast-of-st-mary-of-magdala-apostle-to-the-apostles/
St Anastasius of Schemarius
St Andrea of Antioch
Blessed Augustine Fangi O.P. (1430-1493) Dominican Priest and Friar, Confessor, Mystic, known as “The Miracle Worker.”
Biography:
https://anastpaul.com/2018/07/22/saint-of-the-day-22-july-blessed-augustine-fangi-o-p-1430-1493/
St Baudry of Montfaucon
St Claudius Marius Victorinus of Saussaye
St Cyril of Antioch
St Dabius
St John Lloyd
St Joseph of Palestine (Died c 356) Layman, Convert from Judaism
St Lewine
St Maria Wang Lishi
St Meneleus of Ménat
St Movean of Inis-Coosery
St Pancharius of Besancon
Bl Paolo de Lara
St Philip Evans SJ (1645-1679) Confessor, Priest Martyr, Missionary of the Society of Jesus.
His Life and Death:
https://anastpaul.com/2021/07/22/saint-of-the-day-22-july-saint-philip-evans-sj-1645-1679-priest-martyr/
St Plato of Ancyra
St Syntyche of Philippi
St Theophilus of Cyprus
St Wandrille of Fontenelle (c 605–668) Priest, Monk, Abbot. Married out of obedience to his parents, Wandrille agreed with his wife to keep their virginity and both retired to a Monastery.
About St Wandrille:
https://anastpaul.com/2020/07/22/saint-of-the-day-22-july-st-wandrille-of-fontenelle-c-605-668/
Martyrs of Marula/Massylis: – 3 Saints: Three Christians Martyred together. We know nothing else about them but the names – Ajabosus, Andrew and Elian. They were martyred in Massylis (Marula), Numidia (in modern Algeria).
Martyrs of Massilitani: A group of Christians Martyred together in northern Africa. Saint Augustine of Hippo wrote about them.