SimplicityCraft+ Client-side

This is pretty much a modpack that is focussed on vanilla mods without breaking the vanilla gameplay in ANY WAY!, which means this modpack is meant to be played in online vanilla multiplayer servers.
And they are even all client-side so that you can play the modpack in vanilla multiplayer servers.
A handful of goodness to spice up your vanilla experience, it is also a light weight modpack so that low-end computers can easily handle it, unless you keep the shaders enabled (just disable them and your pc should be good to go).
Go ahead and download these resourcepacks (MrBlue's better monsters, and Angel's weather)

, these resourcepacks makes the monsters and weather more ''realistic'' while also keeping the vanilla feeling:
Curseforge: MrBlues Better monsters
Modrinth: Angel's gentler weather sounds
Modrinth: Angel's Weather

These resourcepacks works best visually if you have shaders on as most monsters and weather system gets enhanced by it.

25 Mods are Included.
Client-side Mods that are included (libraries excluded) (Alphabetic Order):
Ambient Sounds.
Apple Skin.
Cloth Config API.
Cool Rain.
Detail Armor Bar Reconstructed (DABR).
Entity Model Features.
Entity Texture Features.
Fabric API.
Inventory Particles.
Iris Shaders.
Mouse Teaks.
Particle Rain.
Precense Footsteps.
Simple Voice Chat.
Subtle Effects.
Sodium.
Sound Physics Remastered.