best way is to do a couple a rank hunts or s rank hunts and shouting for a hunt ls before pull or after the kill. someone is likely to send you an invite. Or, look for me ingame, David Coffey, and i can send you an invite to a hunt ls or two.

I've also got a Discord Channel for hunts if you're interested. our primary focus is calling S Ranks in there, it's great for when you're afk or tabbed out and getting that s rank notice. if you're interested: https://discord.gg/FbyPpZJ