This is the interesting outcome of a new PNAS paper (pdf, R) that finds
According to the farming/language dispersal hypothesis, migrations fueled by the shift toward agriculture and animal husbandry in the Holocene have given rise to some of the largest language families identifiable today.
Most researchers thought that genes and language would match while the new paper shows
At the level of individual populations, we estimate more matches (matching enclaves or aligned populations) than mis- matches, but single-population mismatches are present in each continent and within each language family.
The database can be found at https://gelato.clld.org/