Go to the Welcome to Victory Thread that is stickied at the top of our Victory forums. It'll tell you about our server's chat channels and give you tips on finding/forming teams. Lot of people playing usually, especially after Going Rogue.
Guide: Tanking, Wall of Fire Style (Updated for I19!), and the Four Rules of Tanking
Story Arc: Belated Justice, #88003
Synopsis: Explore the fine line between justice and vengeance as you help a hero of Talos Island bring his friend's murderer to justice.
Grey Pilgrim: Fire/Fire Tanker (50), Victory
I did this first, but had no luck. 
Join one or more of the following channels: "Victory Badges", "Victory Forum", "Victory Global". Do NOT just post "LFT" in the channels, that rarely gets you anywhere, judging from how often I see the same person post that over and over all day. Either wait for an announcement that someone is forming a team, or form your own. If you form your own, mention what you're running, not just "Team LFM", but rather "Blueside tip team, level 15, room for 6 more". If people know that you're doing something they want to do, they're more likely to be interested; I find a lot of people are fairly goal-oriented, meaning that they don't want to join a team if it doesn't help progress them towards those goals.
@Roderick
Heck, you can't even be open to suggestions if you are going to run a team. If I say in a channel "anyone feel like a Synapse or a Posi," I might get a response or two, and that's it. If you pick one, however... people respond a lot more... apparently people like to be bossed around.
Anyway, I would highly recommend creating your own teams, unless you see something already going on that you want to join in. It's easy to say what you are up to in the server channels, and then copy and paste an appropriate tell to people using the search feature.
Also, learn to be okay with a non-full team. There'll be nights where you can find eight people, easy. Other times, you have a four man team, or even three. You can still have fun and get stuff done for regular missions. And you may actually have more people come in as you go.
Guide: Tanking, Wall of Fire Style (Updated for I19!), and the Four Rules of Tanking
Story Arc: Belated Justice, #88003
Synopsis: Explore the fine line between justice and vengeance as you help a hero of Talos Island bring his friend's murderer to justice.
Grey Pilgrim: Fire/Fire Tanker (50), Victory
Trying to level a Warshade, currently level 15, anyone interested in teaming like... right now?