I'm happy to oblige with some names for you then, in no particular order
Mergle: gone along with many lynches, hasn't really contributed much in-thread and when he has it was based on some fairly poor reasoning (the spaceman lynch). You haven't directly gone after him either when he's thrown up a number of red flags (at least to me), so I already suspect the two of you have been working together since the very beginning. You know more than I about him.
Mat93. As pointed out by others, he has skirted under the radar. I vaguely recall a claim from him or from someone for him, but he also got an inconclusive scan result on him. That scan worked on Bsmith, didn't on TBK. To me, he's vig material.
Ravus_Sol/traius. Fell to the backburner, but at the end of the day he still stopped a lynch way back when and traius did act fairly scummy when he was in control of the role. Lynch pressure won't do anything, therefore is also vig material.
Sam Sniped: PG scan won't catch a converted cult, so in this particular instance I would agree with you on targeting him. Lynch might reveal role through pressure (or did we get a claim from him?). Shoddy voting record doesn't help either.
Buddhafish, though not because he's used his ability up (and in such a way that was helpful). If we assume the Cult didn't have a kill before mech's death, than from a purely mechanical standpoint it could make sense the Cult would have a way to screw with the other kills by extending the night. It's extremely flimsy, but it's a thought. One has to figure the Cult would have something else to do while mech ran around trying to convert people. Otherwise, it's a pretty boring/static side to play on. Possibility on SamSniped with this line of thought also. Tangentially, what was/is your PG?
Yes it is easy to criticize any kill after it's all said and done, and while I can kind of see where you are coming from with the 'no harm, no foul' line of logic, the fact he had the Orb, not his ending alignment, is what set me off. It just didn't look good/something a townie would do, that's all.