The book of Ruth is up next after Judges. It is a short read if you'd like to read it today! It also establishes one of the links of David's ancestry.
Rth 4:17-22 And the women her neighbours gave it a name, saying, There is a son born to Naomi; and they called his name Obed: he is the father of Jesse, the father of David. Now these are the generations of Pharez: Pharez begat Hezron, And Hezron begat Ram, and Ram begat Amminadab, And Amminadab begat Nahshon, and Nahshon begat Salmon, And Salmon begat Boaz, and Boaz begat Obed, And Obed begat Jesse, and Jesse begat David.