Vintage Oddball or Rare/Scarce?

[Mbjerry]

I just entered the vintage world last year. Looking for advice or information on how to find oddball vintage cards that the herd isn't chasing. For budget reasons and interest, I seem to gravitate to the stuff the crowds aren't after. Overlooked and undervalued all time greats is one way I have been doing this. But now I would also like to look at less desired (more rare) stuff. That is the tricky part for me is finding more rare or scarce items that aren't also highly sought after. Any recommendations on specific sets/years/types to look for? Any recommendations on how to identify this stuff? Any help would really be appreciated. I am most comfortable in the under $200 range. Thanks!