Radio Havana Cuba on 6000 khz is English during the Evening, if memory serves.....
CKMX Calgary Canada has a SW relay on 6030 khz that sometimes gets out... They play comedy.
There's another AM station's relay in Toronto on 6070 khz (can't remember the call letters). Some news talker out of Toronto.
On 6160 khz there is a CBC low power relay out of St. John's Newfoundland. I heard it once on a small portable SW radio here in the PNW -- but that was a fluke. Others have heard it back east, though -- so it does get out.
There used to be another CBC relay on 6160 out of BC Canada but it's basically MIA, and has been for several years. Even if it wasn't MIA, if you're in the Eastern US, you probably wouldn't hear it, anyway....
Good luck.