What are some special/broadening assignments for 42A? And if you worked in that assignment, or know someone who did, how was it?

Or even packet MOS's. Any interesting ones? I have nothing against being a 42A, I love working in an S1 (most of the time), however I don't want to be stuck working in one my entire military career (I've only been in 5 years now, 8 after I finish my current assignment)