I love listening to Hop Along, an indie folk-rock bank from Philadelphia.  Have you heard of them?
I've never heard of them. What are some of their songs?
One of their more popular songs is called "Wretches" in 2009 and "Get Disowned"  in 2012, winning high praises from the music community. 
Huh. I'll have to look those up. I do like indie folk-rock. Are there any other folk music bands you can recommend?
Given that the genre emerged from really popular bands in the past, one of my favorite indie folk-rock band group I would recommend would be Bob Dylan in the US.
Bob Dylan is a legend, for sure. Even if he kind of talks more than sings. I really enjoy the messages in his songs.
Bob Dylan
Bob Dylan (born Robert Allen Zimmerman; May 24, 1941) is an American singer-songwriter, author, poet, and visual artist who has been a major figure in popular culture for more than fifty years. Much of his most celebrated work dates from the 1960s, when songs such as "Blowin' in the Wind" (1963) and "The Times They Are a-Changin'" (1964) became anthems for the Civil Rights Movement and anti-war movement. His lyrics during
in 2009. In light of the new formation, the name was shortened, possibly to better reflect the change from solo project to full band. Hop Along went on to release an EP, "Wretches", in 2009, and a full-length LP entitled "Get Disowned" on May 5, 2012, winning a highly positive critical response from the independent music press.
In October 2014, Hop Along signed to indie rock label Saddle Creek Records, which released the band's third full-length record,