Levels 10-25 Mobilising armies Teleports
Levels 25-37 Varrock Teleports
Levels 37-45 Falador Teleports
Levels 45-55 Camelot Teleports
And this is How I did it from 55 to 99
Cast 197k High Alchemies from 55 to 99 (takes about 2 months if consistent)
This is just how I did it