When is the best time of the year to buy tax lien?

[Kin Lay]

I am considering real estate investment and starting as a newbie. I am particular interest in tax lien because I only have few thousand dollars as capital as I recently graduated from college. I researched about tax lien and know that tax lien auction vary county by county. However, in general, what month(s) of the year is best for tax lien auction / sale? I think property tax is due around April across the country. Should I expect more tax lien on sale the first auction after the deadline of the property tax? On the other hand, should I also expect more investor(s) / competitor(s) to show up on these auction?

Any insight would help, thank you!