The typical Roman has elven facial features, short black or brown hair (for men), fair or olive skin (changes tonne with season), a broad brow, deep eye sockets, high-bridged aquiline Roman nose, round or large almond blue or brown eyes (eye colours can vary), shorter shaved face or short moustache & goatee, medium rosey lips, deep facial depth on side, prominent cheek-bones, raised long straight chiseled jaw and smaller round head. They usually have light olive skin, in summer and pale skin in winter. Their Roman nose could be a natural adaptation to smell where the enemy is located in battle.
The typical Romans also have broad shoulders, a muscular Roman statuesque body, as well as strong biceps and calves. This could be inherited from the Roman legions who had to march from Rome to Britain as part of their military training. They are usually around 150-170 cm tall.
The typical Romans usually had Roman feet with the first three toes at the same length-possibly as a natural adaptation to give them more stability as they worked hard and marched around a lot.
The typical Romans ideally have almost flawless physical proportions, except that many have ears that stick out a bit. This could be a natural adaptation to help them hear better, especially when wearing a Roman helmet.
The typical Romans looked like many modern-day Italians, especially from Naples, Lazio, Tuscany, Sicily and Calabria.
They also looked like the typical Greeks. The difference was that the Greeks' face was usually longer and their nose was usually straighter.
The typical Roman was more common in ancient Rome, before the barbarians invaded and unfortunately polluted their blood-making more of them look more typically foreign.
I know all this because I have observed the common physical traits exclusive to hundreds of modern Romans. They don't look much different from the ancient Roman portraits and statues of Romans.
Link to what typical Romans generally look like:
https://www.google.com/search?client=ms-android-samsung-ss&sca_esv=558714157&sxsrf=AB5stBjkhoyzPdtfDftQGjQIT4sYgCmUvQ:1692610383270&q=roman+phenotype&tbm=isch&source=lnms&sa=X&ved=2ahUKEwi35IyFue2AAxW-pVYBHc5SCmQQ0pQJegQIChAB&biw=384&bih=718&dpr=2.81#imgrc=-plQ53jFy1UY7M&imgdii=D2w1coIzns4n4M
(It should be noted that some Romans in the link look more typical of Greeks and Germans).