The album I usually listen to on those sorts of days and am alone and can sing along as loud as I want, is the Singalong at Sanders Theatre live album by Pete Seeger--I've been thinking a lot about it recently though haven't listened to it in its entirety much recently. I have been scattering songs from that album all over permies in recent days so will refrain from linking to it here again.
I also tend to go to Caitlin Canty's album Motel Bouquet especially, that is in the opposite sort of situation energetically to Pete Seeger's. Some of my favorite songs:
River Alone
Motel