Otherwise, put up a partyfinder group. Say that you want to join some linkshells, and if possible describe the types you want to join. Is it general chat? Hunt relays? Crafting advice? Put it in a PF group, and typically youll get some invites without too much hassle. And if the group you want to join doesnt seem to exist(running old content at minimum item level in DPS only groups? might not find that group straight away), you can always make it yourself and try to recruit others the same way.