CHICAGO — A lineage of greatness exists within Saba. And it is his family, his creative roots, even the foundation of his great-grandmother’s home, that serves as a source of inspiration in his latest record, “Few Good Things,” released last week. Crafted before and in the midst of the pandemic, the West Side rapper’s new collection of music is something of a sonic epic, traversing the good and bad, the permeating repercussions of memory, change and success in one young man’s life. Since releasing his critically acclaimed 2018 record “Care For Me,” a lot has changed in Saba’s life. From intern…