Start by saying what part if the world you're in, big difference between an arctic expedition (extreme, I know), a Spanish trek, or an Irish summer(worse than arctic at times)
Also, is it a family tent with separate bedrooms, or 6 lads bunking in together?
What is your budget?
Is weight a factor? Are you driving, cycling or other.
Theres lots of considerations before you step in a shop.
There have been some great family tents in recent years in lidl and aldi, very reasonably priced. Most are built to similar specs nowadays with the waterproof levels being the major difference. If this is a once off, theres probably no point in spending huge money.
Give a bit more info, and you'll get better information back.