Every module have a progressive number, that corresponds to load order.
If you are interested to more options for one or more modules,
I suggest you visiting the specific module page.

COMPLETE LOAD ORDER (FULLY INSTALLATION)

"ERSO 01 - Vanilla Races Redone *.*"
"ERSO 02 - Enhanced Fauna and Monsters for Skyrim *.*"
"ERSO 02.1 - RALs"
"ERSO 03 - *.* Mighty Dragons *.*"
"ERSO 04 - Mighty Odahviing"
"ERSO 04.2 Mighty Durnehviir"
"ERSO 04.3 - StopDragons"
"ERSO 05 - Dovah Holy Book"
"ERSO 06 - Wait More Time Dragon Encounter *.*"
"ERSO 07 - *.* Mighty Dragon Priests"
"ERSO 08 - RUS-00 Main *.*"
"ERSO 08.1 - ERSO MIRAAK *.*"
"ERSO 08.2 - ERSO HARKON *.*"
"ERSO 09 - RUS-Npcs overhaul *.*"
"ERSO 09.1 - Essential Children"
"ERSO 09.2 - Radiance"
"ERSO 10 - RUS-(SIM)-Travellers and Adventurers"
"ERSO 10.02 - Adventurers and Travelers"
"ERSO 10.03 - Immersive Battles"
"ERSO 10.04 - Immersive Brigands"
"ERSO 10.05 - Immersive Patrols"
"ERSO 10.06 - Immersive Werewolves"
"ERSO 11 - RUS-(SIM)-Assassins and Thieves"
"ERSO 12 - RUS-(SIM)-Werewolves"
"ERSO 13 - MD - A Better Level Progression *.*"
"ERSO 13.02 - Lower Skill Gain *.*"
"ERSO 13.03 - Higher Skill Cap *.*"
"ERSO 14 - Vendors richer and Inns more expensive"
"ERSO 14.02 - Harder Barter *.*
"ERSO 14.03 - Vendor Soul Gems *.*"
"ERSO 14.04 - Vendor Animal Parts *.*"
"ERSO 14.05 - Vendor *.* Minerals"
"ERSO 14.06 - Vendor *.* Enchanted Weapons Armors"
"ERSO 14.07 - Vendor *.* Weapons Armors"
"ERSO 15 - Timescale *.*"
"ERSO 16 - Realistic Crime Alert Distances"
"ERSO 17 - Training cost more expensive"
"ERSO 18 - Legendary Armors and Weapons Enhanced *.*"
"ERSO 19 - Respawn *.*"
"ERSO 20 - Standing Stones Overhaul"
"ERSO 21.01 PM Dungeons/ .02 Blackreach/ .03 Dwemer modules"
"ERSO 22 - Better Necromancy Spells"
"ERSO 23 - Lockpicking Perks Changes"
"ERSO 24 - Pickpocket Perks Changes"
"ERSO 25 - Enchanting Perks Changes"
"ERSO 26 - Realistic Fall Damages"
"ERSO 27 - Better Archery Stuff *.*"
"ERSO 28 - Killmoves *.*"
"ERSO 29 - DPMO"
"ERSO 30 - Better Enemy AI *.*"
"ERSO 30.1 - Better Expert Level"
"ERSO 31 - Unlimited Followers"