best, what you should decide first is "What clan am I looking for?". Judging from your ladder games you enjoy a more competitive warlight so look for clans that offer a more strategic base. If you prefer diplo games join a diplo clan or role playing join CORP. If you hate yourself join pooncrew or darklords.
Some clans have pretty high standards, some have none at all(ie darklords). It all depends on you. How did I get into M'hunters you might ask? I've played tons of games with a council member of the clan and I just messaged him and showed him a few of my games.
Im certain if you find a decent enough clan all you need to do is show them a few games or maybe play a few games with them before they accept or reject you.
If they all reject you(except for darklords cause they accept everyone) then there is always the alternative of creating your own clan.
Goodluck on your search, hope my information was helpful and unbiased Regards Nogals