Hey, it really depends what you want a party for. If you need help with quests or missions, just shout in Jeuno for people, it's usually rather easy to find someone, I found that many people are helpful with those kind of things.

Also, you should consider joining a newbie-friendly linkshell. There's several that are specifically there to help new/returning players to catch up with current content. You could always check your server's forum or ask for a linkshell there.

If you have any questions, feel free to ask here as well.