Wilco48,
I get the Old Time Herald also. You didn't mention what you like about it in particular, so I'm not sure what I'm recommending here. For myself, I especially like that the articles are often very in-depth, more so than in some other magazines.

If you're interested in fiddle music, Fiddler magazine is another good one. Also non-slick, with interesting articles. I do play fiddle, but I think there's quite a bit of "general interest" material in there as well. Here's a link to check it online.

Fiddler Magazine

For general interest, I would definitely go with Sing Out!. There's so much in there, that no matter what your current interests, you're sure to find a lot there. And it's great for discovering new performers, songs, in fact entire genres of music as well.
Zhenya