MC but Better

Even Better Enchants

Gives different textures for each enchantment book.

Litematica

Lets you see a blueprint of what you want to build.

Modmenu

Lets you see all the mods you have installed

Better Clouds

Makes clouds look way better without sacrificing any performance.

Held Item Info

lets you see the enchants on your tools and the contents of a shulker box when you switch to them in your hotbar (like in Bedrock edition).

Dungeons and Taverns

Adds a bunch of cool new structures to the game.

Resourcify

Lets you download resource, shader, and data packs ingame.

First Person Model

Lets you see you player character while in first person.

Recolorful Containers

Makes all utility blocks have a unique GUI.

Biomes O' Plenty

Adds a lot of new biomes to the game.

Al's Creepers Revanmped

Makes creepers have a different texture depending on what biome they spawn in.

Status Effect Bars

Lets you see a bar for effects while not viewing the inventory.

Scribble

Lets you type with different colors and fonts.

Qraftys Capitalized Font

Makes the Minecraft font look better (:

Better Advancements

Makes the enchantment screen larger.

Icon

Enchanted Vertical Slabs

Adds vertical slabs.