The best thing that you can do to find a server to join or a group to play with is to check out these links below which lead to different sub-forums on the official LiF website.
Guild Recruitment:
recruitment/Private Servers:
private-servers-f48/Also while on the server list in-game filter by players and check out the server info when you have selected it to see if you like the settings, join and meet new players! There are usually groups recruiting in-game on servers if you would like to try and do it that way.