Ones I like

An Ender Dragon overhaul with progressing difficulty, new attacks, and elegant particle animation.

Dyeable and upgradeable vanilla-friendly backpacks!

An expansive mining data pack. Adds a probability of obtaining treasures from mining. 100+ custom items, 80+ loot tables, 200+ achievements and much more!

A simple day counter display above your hotbar that will tell you the current world day, useful for Hardcore world and 100 days challenges

Adds a bunch of craftable tools that help make building easier! Trowel, chisel, hammer and so much more!

An extensive mod that adds new structures to your game.

A mod that reworks most of the vanilla structures while staying true to the vanilla feel.

Harvest 3x3 areas of crops when holding a hoe!

This lightweight advancement pack adds over 500 advancements to your world. All of them are able to be done in Hardcore, with more being added with each update! Enjoy!

Grants every trim a unique set of powers, optionally through quests.

Talentium adds 13 dynamic talents with a configurable level curve and level cap. 60+ advancements, tons of new content and lots of exploration.

Cut glass, stone, wood, copper and more easily with the cutter - Get heads from any blocks or items

Petra is an ancient desert city in a Minecraft vanilla-friendly style, inspired by the rock-carved wonders of Jordan, featuring monumental facades and hidden passages.

Stonehenge is a prehistoric monument in Minecraft vanilla-friendly taking inspiration from prehistoric massive stones in England, featuring mysterious ruins and hidden loot.

Adds biome-specific Stronghold variants, featuring unique layouts, new challenges, and updated mechanics.

This datapack adds elephants, jellyfishes, sharks and more, without causing lag to the server! No resource pack required

A datapack inspired by End Remastered, gather eyes and go to The End!

Makes Happy Ghasts double the speed. That's it.

Fabled Roots adds 10 unique races and 10 powerful classes to Minecraft, along with new weapons, items, spells and structures to explore.

Easily connect fences using leads - Useful for creating power lines and other things!

Adds a lot, I mean a lot, of advancement (90+) to make players want to adventure through their worlds. To collecting stacks of diamonds to traveling 10k blocks by elytra the datapack adds A LOT of advancement with their own rewards (For the hard ones)

Place Warpstones at key locations to create fast-travel points in your world!

Adds a Training Dummy so you can test your weapons attack damage as see how many heart you would take from another player or entity.

Working Chess in Minecraft

An easy way to control the length of the Minecraft daylight cycle.

Simple player sit with Quick Actions key!

An overall improvement over the vanilla terrain. Make those cliffs taller and those caves depper!

Adds a harness upgrade to improve happy ghast flying speeds. Craft a propeller from 1 iron surrounded by 4 iron nuggets and combine it with a harness to increase the flying speed by 100%