Most of my longer stories tend to have a significant A plot.
I'd say you could get a good indication of that by reading the 'blurb' description in the archived version.
If I had to recomend one I'd say maybe the "To Protect and Serve" series, or perhaps "A Matter of Confidence" which is one where Lois goes undercover by herself.
Tank (who says that longer stories are usually the ones that require a considerable A plot to keep them going while interweaving the B plot elemnts)
