https://royals.ms/forum/threads/leeching-exp-calculator-optimal-leeching-places.102411/ I generally prefer orbis exchange to 25 followed by iTCG to 43, but it’s largely dependent on your budget and how many iTCG sets you have and so forth.
https://royals.ms/forum/threads/leveling-from-7-to-41-in-10-minutes.130585/ There are other combos cheaper than lefay + typhon that you can google and should be able to find a list on hidden-street
