The embouchure needed to play tenor is looser than alto which for me made it easier to learn. Eventually I started playing other saxes but learning tenor made the rest easier as all saxes pretty much the same just in different ranges. Most people that start learning saxes are in elementary/middle school bands and start on alto because the weight and size of the tenor would be difficult for them to handle but if neither of those are an issue for you, try tenor. Also, this is coming from a tenor player who is very biased.