If you're looking to gear up without using the in-game pug finder, you should consider OpenRaid, where you can find guilds doing content that you can sign up for, appropriate to your gear level. The expectation is that you will get a fair shot at loot, with no obligation beyond the events that you have signed up for and been approved to attend. It's also a good way to build a friends list and make contacts for potential long term raiding guilds without screwing them over.