Question for the Crowd: Who Writes Like Me?

I frequently get e-mails from people who’ve liked my fiction but who have blown through all my novels, asking me to recommend other writers who write like me. The thing is, I’m in some ways the worst person to ask, because:

1. When I’m writing novels I don’t read fiction, so I probably don’t read as widely as some people suspect;

2. I’m too close to my own writing to be a good judge as to who writes like me; I’d be all “wait, this is supposed to be like my stuff? I don’t see it” to just about everything, I suspect.

So, I thought I’d throw it out to the crowd here: What writers — current or past, but I think with an emphasis on more recent authors — write like me, and/or which books out there are sufficiently similar to my own that they might be interesting to a fan of mine?

Please put thought it into this; I want to be able to use this thread as a resource. So tossing out the name of any military SF novel just because I wrote Old Man’s War, for example, isn’t actually helpful. Consider tone, theme, style and so forth. And, if you would be so kind, a small explanation of your choice(s) would be helpful.

Also: For the sake of avoiding massive repetition, let’s assume Robert Heinlein is taken as read (literally).

Also also: If you’re an author, please avoid recommending yourself. This isn’t meant to be a self-promotion thread (but please recommend other authors you think will fit the bill).

With those caveats above noted: Who writes like me/which books are like mine? Let me know in the comments, so I pass it along to the readers who want to know.

And thank you!