Dimensions Galore

DimsGalore has many Dimensions Mod, all the way from Overworld Vanilla to the SPACE!!!

if you like Exploring more dimensions then this modpack is for you!!

Has some Magic mods like Botania, Thaumcraft, and Astral Sorcery.

Storage mods like AE2 and its addons plus Storage Drawers and Iron Backpacks.

Uses BiomeBundle for World Gen, you can generate a normal world too and there is Roguelike Dungeons for more loot and fun.

some Tech mods like Ender IO, BuildCraft , Ex Nihilo, Simply Jetpacks and RFTools.

also the famous tools mod Tinker's Construct.

AND FINALLY THE MAIN DISH 

Dimensions mods:
1-The Twilight Forest
2-The Erebus
3-The Aether Legacy
4-RFTools Dimensions
5-NetherEX
6-MystCraft
7-Atum 2
8-Aroma1997s Dimensional World
9-AbyssalCraft coming at ya with 3 DIMS!
10-AND FINALLY THE BETWEENLANDS BECAUSE WHY NOT!

And ofc there are some other QOL mods like CarryOn
Classic combat (because you are going to need that back spam clicking, i hope you survive.)

Chisel and Chisel & bits
Compact Machines (mini dims mod which is cool.)
Controlling for better keybinding options
Cosmatic Armor, Cyclic, Fast Leaf Decay and OreExcavate
JourneyMap, JEI and some of it's addons, Malisis doors
no mobs spawning on trees, Not Enough Wands for more wands than just a building wand
OpenBlocks, Pam's HarvestCraft and Cooking for blockheads, Quark which adds some cool cave generation
Random things mod and Reliquary mod for more fun stuff, Simple Harvest to right click a plant instead of breaking it and replanting
Swing through grass which makes swords able to hit mobs if they were in long grass, Tinker tools leveling, Translocators, and Waila and some addons to all the mods

NOTE: Modpack is still going to be Updating and stuff so make sure you get backups for your worlds/servers before updating.