Gruve Kolonier is a modpack that has less mods than the average modpacks, but its still packed with mods that makes you do whatever you want. I suggest you focus on Create, Minecolonies and Iron Spells. Its up to you though.

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Some of the main mods are:

Main Tech mods:

Create

Create Crafts & Additions

Create Jetpack

Create: Steam 'n' Rails

Flux Networks

Hostile Neural Networks

LaserIO

Mekanism

Modular Routers

PneumaticCraft: Repressurized

Powah! (Rearchitected)

Refined Storage

RFTools

Main Magic Mods:

Ars Nouveau

Forbidden and Arcanus

Iron's Spells 'n Spellbooks

Mahou Tsukai

Exploration Mods:

Better Villages - Forge

Biomes O' Plenty

Blue Skies

ChoiceTheorem's Overhauled Village

L_Ender 's Cataclysm

Lootr (Forge)

MineColonies

Naturalist

Nature's Compass

Repurposed Structures (Neoforge/Forge)

Stargate Journey

The Twilight Forest

Towns and Towers

Waystones

YUNG`s Better mods

Other exciting mods:

Apotheosis

Aquaculture 2

Artifacts

Baubley Heart Canisters

Botany Pots

Building Gadgets

Comforts (Fabric/Forge/Quilt)

Cooking for Blockheads

Corail Tombstone

Dragon Mounts: Legacy

Farmer's Delight

Gateways to Eternity

JourneyMap

Just Enough Items (JEI)

Mining Gadgets

Mob Grinding Utils

Moving Elevators

Productive Bees

Sophisticated Backpacks

Sophisticated Storage

Storage Drawers

UtilitiX

There are other QoL mods that makes Minecraft better, and addons to the mods listed. Also Shaders are standard.

Anàrjohka

AI Improvements

All the Wizard Gear

Allthemodium

AmbientSounds 6

Angel Ring

Apotheosis

Apothic Attributes

AppleSkin

Aquaculture 2

Architectury API

Ars Nouveau

Artifacts

ATO - All the Ores

AttributeFix

Bad Wither No Cookie - Reloaded

Balm

Bartering Station

Baubley Heart Canisters

Better chunk loading[Forge/Fabric]

Better Compatibility Checker