A small tidbit I just learned from good on instagram.
Search your product - eg for me 'real estate photography noosa' then scrolled down to see what other people searched for.
So my other related searches are:
Prices
Free
Beach
Luxury
e Coast
Real estate photography noosa prices
Real estate photography noosa beach
Free real estate photography noosa
Luxury real estate photography noosa
Real estate photography Gold Coast
So I would add this to my site (or just do a blog post lol!)
Take away: if you do free marketing people are searching for that make it a feature on your website