With almost 2 accounts at lvl 120 Arch, and an Ironman with an Inquisitor Staff and Spear of Annihilation, I have a few tips to offer to make your Archaeology grind as easy as can be.
RS Wiki hotspot calculator: https://runescape.wiki/w/Calculator:A...
0:00 - Intro to Archaeology (Benefits/Relics)
2:00 - #1 Get Store Upgrades
2:48 - #2 Boosts (Arch potions & god banners)
3:30 - #3 Spend Money (Wisely)
4:59 - #4 No Lamping (until 99)
5:29 - #5 Keep Spare Artefacts
6:03 - #6 Don't Grind Tetracompass Collections
6:49 - #7 RS Wiki Hotspot Calculator
7:22 - #8 Dig at Highest Lvl Spots (Mostly)
8:22 - #9 Use Porters
8:56 - #10 Do the Quests
-- Iron Accounts --
10:04 - Irons: Avoid Material Caches
11:02 - Irons: Getting Porters (Amlodd elf Thieving)
12:04 - Irons: Inquisitor Staff & Spear Tip Grinding