you can wait grow up your account rank or you can buy minumum full member rank bitcointalk account and join one of the signature campaign.
yeah probably the OP had already owned a high ranking account now...
and might be in a signature campaign...other than what I mention, he could also sell his skills here and be paid in bitcoin. I suggest you grow your own account. If you buy an account there is a decent chance it was farmed and posts are utter crap, we all have seen them ones with like what was your last drink, what was last music you listened to... just a ton of offtopic. These will not get you into any decent sig campaign.
If you raise it you not only learn knowlege along the way. You have a account with better post history (in my opinion). And someone is not going to possibly get it back. On a acccount you buy it could be a account seller claims as stolen with being able to sign with old bitcoin address, they can get it back.
I am very much against bought accounts. Think twice before buying one.