What type of model should i be?

hi i want to b a model im (slightly under) 5'9" and hav a 34-24-34 figure and 20" thighs ...however i could easily lose or gain a few pounds (oh but there's no way im going to try to be size zero caus its just not going to happen!)! just wundering wat type of model would i be e.g catalog or fashion or glamour etc.. and also had anyone got any tipss to help me start offf! thanx! xxxxxxxx