Hekkit

Heavily modded 1.19.2 Forge pack with around 400+ mods. Here's just a peek at what modpack contains (more included!):

Adventure & Exploration Focus: When Dungeons Arise - massive dungeon structures, Dungeon Crawl, Dungeons Plus, Dungeons Enhanced - more dungeon variety, Philip's Ruins, Castle Dungeons, Underground Bunkers, Towns and Towers

Combat & Weapons: Better Combat + Combat Roll - overhauled combat system, Spartan Weaponry, Simply Swords, Epic Knights - weapon variety, Ice and Fire - dragons and mythical creatures, MrCrayfish's Gun Mod - firearms

Magic & Supernatural: Ars Nouveau - spell crafting Occultism, Hexerei - dark magic Vampirism, Werewolves - supernatural transformations, Origins + Apoli - character origins system

Technology: Thermal Series (Foundation, Expansion, Innovation), Industrial Foregoing - automation, Tinkers' Construct - tool crafting

World Generation: Biomes O' Plenty, Terralith, Regions Unexplored, The Undergarden, Bygone Nether - new dimensions

Creatures & Mobs: Alex's Mobs - diverse fauna, Cataclysm - boss creatures, Mowzie's Mobs - unique entities

Quality of Life: JEI, Waystones, Sophisticated Backpacks Embeddium (rendering optimization)

This is essentially a kitchen-sink adventure pack focused on exploration, combat, and magical progression with some tech elements.