I think a y DNA kit would certainly help my cousin and other males who have several single mothers in their lines
How / where / what company is best to purchase with ?.
B
FTDNA is the best company for a yDNA test.
There are multiple versions which as the depth of the testing increases so does the price.
The 111 test is a good starter but the 37 will also provide results and any can be upgraded retrospectively.
I took their 111 yDNA test and the closest matches indicate the MRCA 6 generations away. Whilst this might seem quite a while it does give the surname that I was expecting to find.
If Haplogroup knowledge is important then the lesser test will only give a partial result, the Big 700 is needed to get the detail, i.e.mine is RM269 which is a common European one so not really worth knowing from a Genealogy perspective.