This is really an affordability vs use question. Any stake that will go in the ground should work.

I've liked the Easton stakes that came with my TarpTent.

However, if budget is an issue you can:
1) buy nail stakes or the big yellow ones at many stores
2) whittle them from a variety of sticks.

The Easton stakes have gone in easily by hand and are easily removeable. The bent nail style stakes that commonly come with many tents are heavier, but they work the same way.

Steadman