Hmm. Bit tough to describe all at once but i guess ill try?
Basically, LOTRO is a parallel story to the events of the lord of the rings. Players are acting semi-in secret to help secure the fellowships travels to mordor, etc, and they get into tons of trouble along the way. Simple stuff tbh. However, the crafting system in lotro is one of the best systems ive ever seen in any MMO, like, ever. Its engaging, semi-rewarding even at low tiers, and keeps me coming back. As for the community, even though the games over a decade old, theres still tons and tons of regular expansions, player held events and rp servers that leads to one of the better in game communities ive found. People are welcoming and even keen to help new players, and theres always someone willing to ferry another across the world if it means a little extra gold in it for them. Crafting guilds are huge and the pve game is still going strong, though pvp is also a very common sight ingame. Id say… class wise, theres 6, 7? Races and in the tens of classes. Some races cant use some classes, and some classes are straight up locked behind paywall, but even the basic ones are totally awesome to run with. I myself am a level fifty-some ranger.