My question is whats the best way to build this site for the best SEO?
Should I build a page for every city + every services like /location/service if so thats like 600 pages and writing unique content for 600 pages? or just duplicate and change the keyword+city ?
Or just build 30 city pages and 20 service pages?
I'm really confused on whats the best option here. Any help would be much appreciated!