See for Tu B’av, https://www.theyeshivaworld.com/news/promotions/1993659/video-got-90-seconds-why-is-everyone-talking-about-live-tu-bav-together-4-shidduchim.html
Say Tehillim 32, 38, 70, 82, 121, 124, 127 and 128 where each has a reference to shidduch.
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