First of all, i really do enjoy this game. but with the ammount of heroic quests you have to do, especially early on in the gamewhen you havnt really established a network of friends yet, is a little hard to overcome.
spamming the general chat is one way to do it, but it gets kinda annoying. I would highly recomend taking a good long look at how Aion did their grouping. on Aion shift+v would open an LFG window, where you could register as a class LFG todo a quest, or you could register your group as LFM, Class, todo quests. the quests were linkable, so were the party members or individual looking to do quests, so you could quickly and easily find the right group for you, and it cut down on tons of chatter on the general chat line.