Fores New Idles in Skyrim SE - FNIS SE

No custom animation possible for Skyrim? Wrong. FNIS Behaviors allows to add different types of animations to the game: idles/poses, sequenced, furniture, paired, killmoves, creatures, and others.

Alternate Start - Live Another Life - SSE

Live Another Life provides an alternative means to start the game for those who do not wish to go through the lengthy intro sequence at Helgen.

Relationship Dialogue Overhaul - RDO SE

Adds over 5,000 lines of completely voiced dialogue for NPCs using the original voices. Friends, followers, spouses, rivals, and others have much more to say. All default voices now have follower dialogue. Also fixes dialogue bugs and restores cut dialogue that has never been heard before!

Cutting Room Floor - SSE

A mod to restore several pieces of cut content in Skyrim Special Edition.

Legacy of the Dragonborn SSE

Legacy of the Dragonborn will forever change how you play Skyrim. Not just a display mod, not just a quest mod, not just a new guild mod, but a complete foundational flagship mod to build an entire load order around. This DLC expansion sized mod adds hundreds of new items, dozens of new quests and hundreds of extra hours of play.

Run For Your Lives

A small mod that makes citizens in a village or city run indoors during a dragon attack.

Stones of Barenziah Quest Markers

Adds quest markers to all 24 of the Stones of Barenziah (Unusual Gems) that you need to find/collect for the "No Stone Unturned" quest. For those like me who want to complete the quest, but don't like looking up all those locations

The Paarthurnax Dilemma

Small expansion on the quest the Blades give you concerning Paarthurnax.

INIGO

Inigo is a fully voiced khajiit adventuring companion with over 7000 lines of unique dialogue - much of it about you. He'll level alongside you and avoid most traps. If you're sneaking he won't chatter and he'll whisper if you talk to him. He can run out of arrows. He's highly skilled in archery, one-handed, and sneak.

Beyond Skyrim - Bruma SE

Travel beyond the borders of Skyrim and explore Bruma, the northernmost county in Cyrodiil. Delve into Ayleid ruins, meddle in local affairs or explore the wilds - the journey begins now.

Immersive Wenches

Adds wenches to every inn in skyrim to "serve and chat" with the patrons of an inn using custom scenes, also some quests, adds barmaids that work as servers/innkeepers and maid wenches with a bodyguard that travel around skyrim. They can be turned into followers (they have custom spells/perks/classes/AI) and can be spouses.

Convenient Horses

Special role-play overhaul of the most popular and comprehensive horse system for Skyrim.

The Forgotten City

The Forgotten City is the first mod in history to win a national Writers' Guild award for its script. It is a critically acclaimed expansion mod offering a unique 6 - 8 hour experience: a murder mystery investigation set in an ancient underground city. You'll need to solve it using your wits, and the ability to travel through time...

Helgen Reborn

Helgen Reborn is a fully voiced adventure with over 20 superb voice actors. As you help rebuild the town you'll reunite two old friends, uncover an underground slavery ring, battle in an arena and many other adventures! If you enjoyed other Mike Hancho mods, you will be blown away by Helgen Reborn as this is my most ambitious mod to date.

Falskaar

A DLC sized new lands mod that adds 20+ hours of fully voiced lore friendly (But not canon) quests, dungeons, and more.

Serana Dialogue Add-On

An expansion of Serana's dialogue and NPC features to make her a more immersive follower. Serana Dialogue Add-On is highly acclaimed and also featured in Forbes magazine.

Even Better Quest Objectives SE - EBQO SE

Enhances the quest descriptions in the vanilla game. A now an officially endorsed update to whickus's Better Quest Objectives.

Immersive College of Winterhold

An overhaul of the buildings and inhabitants of the College of Winterhold.

Interesting NPCs SE (3DNPC)

NPCs with more extensive dialogue and role play choices. Over 250+ fully voiced NPCs, 25+ followers, 15+ marriage NPCs, and 50+ quests.This is a fan-port of the LE mod. Ported to Skyrim SE from "scratch," it's since been given TLC and various bugfixes along the way.

Wintersun - Faiths of Skyrim

Wintersun adds religion and worship. Pray, worship at shrines and follow the tenets of your deity to strengthen your bond with the deity and eventually reward you with divine strength. In addition to the divines and daedric princes, the mod adds many other deities from Elder Scrolls lore with their own shrines.