Add a few more details---who are the 6 people? seperate bedrooms? how much space have you to carry it? budget? and you will soon be flooded with suggestions!
Quick and easy would be a bell-tent or pyramid style (my choice) or an air tent.
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Can definitely recommend the Vango Anantara 600xl. Huge space and if you need even more then you can add an additional extension to the front.
There is also the option to fit an additional bedroom taking it to 8 man, although I would guess it would need the extension to gain the space the extra bedroom takes up.
Being an Airbeam I can set up alone in about 30mins although as we got the "Technical Canvas" version the weight is a bit of an issue (circa 65kgs). The normal (non canvas) versions are a little lighter I believe.
Well worth the money and thoroughly recommended.
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