When you go into a place like Walmart and go back to the sportings good department, specifically, ammo; you'll see probably 30-30, .243, .270, .308, and
30-06 being the most abundant.
And right now the sales would be on for .270 and 30-06 rifles some of which will have scopes included. Not knowing your age or size perhaps the .243 would be better for you or the 30-30.
Lots of choices out there in firearms. Nothing wrong with the 1st rifle being a single shot, perhaps a NEF or what they call a Handi-rifle in youth configuration (shorter stock.)
H & R Firearms: Firearms: Rifles samuel brought up a point about your father helping. If he cannot assist I would seek out friends who have fathers willing to take you under their wing to show you the ropes with firearms.
You may find while hunting is fun, competition shooting is really fun. Perhaps you dad would get into that aspect of firearms.
Definitely seek out older guys that know what their doing with firearms. All of us old farts learn much from one another here on the forums.