Well I was going to ask you to join Futility, but looking at your expectation, we're probably not the perfect clan for you. I'll give you an overview on what clans are good though.
Clan that you will fit well in:
Assistancy
Well first and foremost, the clan that I used to be in. The number one thing that Assistancy is known for is their community. A lot of clans say that they have good communities, but it doesn't surpass members talking and being friendly. In Assistancy, people become real friends. When I need help in real life problems, others are always there to help me, and conversely, whenever others are in need, I am happy to help them out as well. Seeing as you love helping people, you'll fit in very well in Assistancy where you'll be among others who all have a passion of helping others, and are never afraid to share their own problems as well.
Ascendency has a lot of minis and has proven over and over again to be the top clan in f2p miniwars. They do about 80% f2p and 20% p2p, so if you like doing a bit of p2p, perfect, if not, then it's a great way to get started.
http://www.a-rs.com
#ascendency
Malaic
Malaic is the home of the greatest Aussies in the entire world. M has a very friendly and closely knit community. I have not experienced it first hand, but seeing how years ago, it's still the same people as it is now, there's no doubt that when people join Malaic, they will always want to be in Malaic. Malaic can be very strong in f2p trips, competing with all the big clans, while other times, they are a bit more relaxed. There are a lot of f2p miniwars and events, but p2p is much less frequent.
http://www.clanmalice.com
#malice
Venenzio
Venenzio's strong point is f2p minis. They do a ton of these every day, so if you like to f2p mini, then give Venenzio a shot. They take f2p minis quite seriously seeing as how they all have rc robes. Venenzio has a good community. Only downside is f2p trips and full out wars aren't that big I suppose, but overall, they are a very good clan to be in.
http://veneratio.ipbfree.com
#veneratio
Immense Rendition
Immense Rendition has a really nice community, and is very consistent in both f2p and p2p. They are strong in miniwars and pulls 60+ consistently. Although Bo flames sometimes, he's a great leader and gets the job done, so it's no problem.
http://irrs.ipbfree.com
#irclan
The Lost Peers
The Lost Pears is a very relaxed clan with an awesome community, and is amazing at p2p. If you wanna do less f2p and get to be really good at p2p, join these guys. There's not much else I can say because I don't really talk much to TLP, but TLP has always been respectful and great at warring.
http://www.tlp-rs.com
#tlp
Ok, I'm too lazy to write any more.