In a recent Shiur / Lecture Rabbi Meir Eliyahu mentioned that after his lectures the two most frequent Berachot / Blessings that people ask from him – are that they or someone should find an appropriate mate / Shidduch and a prayer for Shalom Bayit / Peaceful relations at Home – usually between man & a wife.
He mentioned in passing – once someone asked Rabbi Shlomo Zalman Aurbach, zt”l – a Gadol / Great rabbi from a recent previous generation – “Why didn’t the Anshei Kenesset HaGedolah / Men of the Great Assembly include in the Amida / Standing Prayer (said in daily Jewish Prayer Services) a prayer for Shalom Bayit / Peace at Home?”
He Responded “They did” – [in one of the last paragraphs of the Amida – it says And those that curse my soul – let me remain silent] – “and let my soul be like the dust of the earth to all.”
The reason why many don’t have Shalom Bayit is Expectations – “Aren’t you supposed to serve me? – aren’t you supposed to agree with me? Aren’t you supposed to respect me? Aren’t you supposed to appreciate me? Aren’t you supposed to bring money home? Aren’t you supposed to clean the house?”
If you consider yourself as dust – you don’t have such high expectations. You don’t get into quarrels.
Pray for peace – but just as important work on your middot / character traits.
There are segulas for Shalom HaBayit (Shin, Lamed, Vav, Mem, Hai, Bet, Yud, Taf in Hebrew.) – like reading Tehillim / Psalm 119 / the eight verses corresponding to each of the letters for Shin, Lamed, Vav, Mem, Hai, Bet, Yud, Taf.
But learning works of Mussar / Torah Ethics like Messilat Yesharim / Path of the righteous, Hovovot HaLevavot / Duties of the Heart, Shaar HaBitachon / Gate of Faith in G-d from the Beit HaLevi – can also help. Check out Feldheim & Artscroll for their Mussar Sefarim / Books.
Pray for Peace but Work on Your Middot.