Menguin has great choices. After meeting with local places (men’s wearhouse ect) we were not impressed with prices. Menguin was reasonable and customizable if they already had a white shirt or shoes ect.
Our guys actually purchased theirs from The Groomsman Suit. You can try everything on at home before purchasing to ensure you have the correct size, they have accessories, and it was about the same price (if not cheaper) than renting. They will send you free color swatches as well. I can't say enough positive things about the company!