To start, yes, went through many threads and video's of what Spyderco's are available but still have no clue what to pick up. Without having them in hand, it's just a picture. I did find a pm3 locally but that's it but have yet to swing by to see what it's like
My thoughts, compression lock, 3 to 3.5 inch, flat grind, s30v or s35vn, don't care or want any harder steel. I enjoy a sheepsfoot.
The ones that comes to mind are Sage 5, PM 3, Manix 2, Shaman, PM 2, probably in that order.
Of the 5 you list, I do not have a Shaman. Yet.
Nor a Sage 5, though I have a Sage 1 which is pretty much the same with a different lock. Wonderful light slim EDC folder. Taichung Spydies are absolutely top quality. The Sage is a bit small for my much of own EDC preference though.
I did have a Para3 in S30V, carried it for a while then sold it. Found I much prefer the Para2. But I do like the Para3 enough to have bought another, in CF/S90V. If I'm only gonna have one Para3, might as well be a good one right?
Had a Manix 2 HG S30V for a while, great folder, ended up gifting that to my bro when I got the Manix 2 FFG Cru-wear.
The full liners and ergonomics of the Manix combine to give a feeling of solidness and secure grip that inspires complete confidence in using it as hard as you want. I like the CBL and the tip is a bit stouter than a Para2. My personal preference in a Manix though is definitely the Manix XL, I've had one in my work knife rotation for years. Though it's a bit over your stated 3.5". And it does need a deep carry clip.
I have too many Para2's, which isn't quite enough. My completely biased, subjective, my mileage only assessment is, get a Para2. It's my Goldilocks folder - not too this, not too that, just right - a spot on balance of attributes for a lot of my EDC needs.
And I honestly don't think you would be dissapointed with any of those 5 you list, provided you know what size/weight/thickness you are happy with.