Up to you who you go with, but before you choose always do your research. A lot of different breeders have their own version of strains, so sometimes a simple "which trainwreck strain is best?" put into google is all the research you need

sometimes you get lucky.
I did a bit of research for you out of curiosity and it looks like the history of Trainwreck is rather ambiguous, though they claim it was created in the 70s by 2 brothers breeding landrace strains together in Northern Cali, no names or official source. Doesn't look like it comes from any specific breeder/website, its just a strain that popped up

I cant find any "official" breeder anywhere, so that means you'll have to research which Trainwreck from which breeder is superior.
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