Hybred

PvP Sound Pack changes the sounds in Minecraft to be better for PvP. The sounds in this pack make each action and each kill more satisfying

Parallax Sounds is a pack that aims to change EVERY sound in Minecraft with something more realistic. Zombies are more terrifying, portals are creepy and mysterious, weather is beautiful and destructive, animals sound like animals.

The highest performing 1.21 modpack

A very performant, lightweight, customziable horror shader - also good for rustic, medieval modpacks as well

Sounds of Tamriel is a pack that aims to change sounds in Minecraft with sounds similar the The Elder Scrolls Skyrim for a more Nordic and medieval feeling. This works with addons, texture packs, shaders, and even on servers. It changes hundreds of sounds

A horror modpack that overhauls the vanilla game to be scarier & more difficult - mobs are more dangerous, nights are unrelenting, theirs terrifying monsters lurking behind the fog, in the depths of caves - waiting for you...

A very performant, lightweight, vanilla-like fantasy shader - while retaining Minecraft's pixel aesthetic

HyCraft is an old 2014 Modpack revitalized for newer versions of Minecraft. It emphasizes exploration, combat, challenges, & progression in a balanced but chaotic way!

It is a pack that changes the color and shape of tools to be more realistic; diamonds are now a whitish blue instead of a greenish blue, shapes are slightly tweaked to be more life like.

Adds the aesthetic of classic Minecraft back into the game (Beta or Alpha) along with some of its features - for a nice blend of new and old, along with new content that fits the the exploration and sandbox nature of Classic Minecraft