[cupopigi]

and I actually wanna know more to learn how to get it myself.

such as method, programs, ways to get private HQ combo lists
rather than just buying from a seller so that I can supply continuously

A tool named "Slayer Leecher" does the job well.

Add your keywords and to obtain recent/fresh combos, there's a 24 hour option via the drop-down menu. Duplicate entries can be filtered/removed thereafter. I haven't the time to document a guide. Google It, there's quite a few available.

appreciate will check it right away!