Depends what your budget and “6 or more” actually equals. Is it $10k and 12 people or $40k and 7 people?
The 2 recent posts are steering you towards basically new or almost new vehicles.
Towing capacity AND room for 6 plus is full size van or suv.
Just pick your budget and start there.
$5-6k can get you a nice older 4wd suv with 3 rows and big V8 towing power and about 100k miles.
$50-60k can get you more towing power with the same capacity.
Van can get you more capacity but less luxuries unless you’re spending close to what a comparable suv costs.
There’s dozens of options but you have to narrow down budget, wants, needs and seating.