The biggest city in Kanto, Saffron City contains a few important buildings here. You can find a Clan Registration Center located on the right of the Pokémart, where you can create a new clan for $100,000. If you have been actively donating to Altar, you could exchange the Philanthropist Points for items at the Philanthropist Point Shop found on the top left corner of the map. Since a Rocket Grunt is blocking the entrance to Saffron Gym, you will have to enter Silph Co first, which is the largest building in the middle of this city.
The Philanthropist Point Shop can be found in this City, Click HERE to see the Philanthropist Point Shop