Shabbat before Rosh Chodesh Adar Haftarah: II Kings 12:1 - 12:17 https://www.hebcal.com/holidays/shabbat-shekalim?utm_source=js&utm_medium=icalendar

Shabbat before Purim Haftarah: I Samuel 15:2 - 15:34 https://www.hebcal.com/holidays/shabbat-zachor?utm_source=js&utm_medium=icalendar