Mine would have to be:
SkyUI
Unofficial Patch
Simply Knock
SMIM
Blended Roads
Grimacing with pain… I’m going to say that for the purposes of this question, I’m going to skip all the bugfix mods and the staples-of-everything mods like SKSE and SkyUI. I’m also going to skip the enabling mods like OAR and Base Object Swapper, because so much is built on top of them now that they’re requirements.
When I mod Skyrim, once I have the base layer in place, what do I always include even though I don’t need it?
True Directional Movement. This is so good that for me it’s now a base mod. I love that third person mode both feels good and looks good.
High-Poly Head and NPC makeovers using it. Hard to un-see the clonk in the old heads once you see the nicer ones.
QuickLoot. Massive QOL improver.
Any mod that adds cloaks.
ENB Lights. They make the game so pretty.