Great question and a few humble thoughts
This is my first MMO ever which started on the PS3 and I had no idea at first how important a stink'n keyboard would be as I always played consoles. Now as the leader of my FC and over a year of FFXIV under my belt, I have a good appreciation of what newb's like me encounter when starting out.
I personally speak with each recruit, let them review who we are on our website/FB page and linkshell them on a trial basis if they are game. From there I'll keep track with my officers to Ninja up on them at random times with some new crafted gear, weapon or food and just kick it. We also do weekly and bi weekly contests to intro crafting and gathering and set times aside for specific progression with relic or story quests.
While there certainly are folks that over and over ask for help on everything, I'll usually give them subreddit guides for what to do starting out and what to do\unlock after 50 and make this available in multiple spots.