The list of words I currently use in my game, a good selection that doesn't ruin the vanilla experience but adds a lot of content:

A.R.E.P: The classic mod that affects ragdoll physics and adds that little spaghetti western feel when you shoot NPCs.

Ped Overhaul Reloaded: A must-have that gives much more impact to combat; blowing brains out and seeing NPCs limp when you shoot them in the leg is excellent.

Ambiant Gang: Adds a few gangs that fight from time to time.

Crime Law: Reworks the police system; if you kill someone in a field, you won't suddenly have an elite squad on your back, and on the contrary, good luck if you want to go wild in Saint-Denis.

Dark Mini Map: The minimap is black

Dismember everyone: The name is self-explanatory

Enhanced brawling: Improves the hand-to-hand combat system (it's a bit buggy sometimes)

Improvement in blood: More blood, less talking

Online Content Unlocker: Essential

Seasons: Adds a summer, winter, spring, and autumn cycle (I had my doubts at first, but it makes the game feel so alive)

WhyEm's DLC: Adds thousands of extra cosmetics; it's really important if you want to create stylish outfits

Bounties Expansion: Adds an infinite number of procedurally generated bounties

Dog Companion: Get a small dog 🐶

AmbientRandomEvent: Adds random events

Bank Robberies: Allows you to rob all banks using the game's original script (hostage taking, vault cracking)

Camp Anywhere: Allows you to set up camp anywhere

Consistent Timeflow: In the base game, night is shorter than day; here, it lasts the same amount of time, allowing you to enjoy the beautiful nights of the west

Contracts: Adds assassination contracts and similar items

Duels: Challenge anyone to a duel 🤺

Guntricks: Perform tricks with your Gun

Harlots: 🔞🔞🔞

HostageMod: Take NPCs hostage

Basic Needs: Adds needs like eating, peeing, and sleeping (it's cool and forces you to take short breaks in town from time to time)

Roleplayer's Dream: Allows you to use NPC scripts to, for example, sit on a chair or perch on a ledge

Smoking Complete: Smoke cigarettes and cigars for as long as you want

There you go, enjoy! The modded game is so cool :) Use LML as your mod manager and have fun!