I've become a strong believer that men look better (no matter how tall, short, husky, or skinny) when wearing pants that taper in the leg. By taper, I mean that the fabric below the knee will noticeably narrow or slim down as you go down the leg.
This applies to dress pants, denim, chinos, you name it. Frankly, I don't even look at straight cut, boot cut, or relaxed fit jeans anymore. And if I somehow find myself purchasing a nice pair of wool dress pants with a straight leg opening, I'll ask my tailor to taper the pants pretty much 100% of the time.
The way you can tell that a pant is tapered (apart from the obvious label that might suggest that it is) is by laying the pants on a flat surface and flipping the leg opening up against where the knee of the pants would be. If the knee and leg opening are the same width, then it is not tapered. If the leg opening is more narrow than the knee, then it is.
Take a look at the difference here:
Not bad, but see below:
Now, I am going to caveat this statement saying that not all tapered pants are created equal. Some pants taper far too extreme for one to feel comfortable while some taper so little that you might as well call them straight-leg. I'd say it's on you to find out how much of a taper you're comfortable with.
Either way, the next time you're at the clothing store looking for a pair of pants, I'd suggest looking for pants that have a taper in the leg. You'll just look a lot better, I guarantee it.