Everyday Minerals offers a free sample kit. It comes with your choice of:
3 foundations
1 blush
1 concealer
Samples are completely free, but you pay shipping. I ordered a sample kit and love it. I also ordered the start to finish rice finishing powder and the long handled kabuki brush, and recommend both (especially the brush... super soft!)
https://www.everydayminerals.com/
For the free sample kit, hover over Makeup and click "custom kits"