What planet are you planning on starting on? What allignment do you plan to play? evil, neutral or good? What country are you based? some guilds are specific for country, as for ease of communication and having players online at similar times, due to timezones. What do you plan to specialise in, whilest playing the game? Are you looking for a crafting oriented guild? A fighting one? perhaps a material farming one? A Traders guild or a Hired Mercinary guild? The entire economics of this game is player driven... and there are a lot of things to consider as to what guild would be a good fit for you