So I went down a (short!) YouTube rabbit hole on this one! Here are the two I thought the most interesting, plus a fun site where you get to be the detective.
Colors of the arrows correspond to approximate timing of the events and are decoded in the colored time bar. The initial peopling of Beringia (the region depicted in light yellow) was followed by a standstill after which the ancestors of the Native Americans spread swiftly all over the New World
Potential extent of human survivability during the last glacial maximum.
Pre-Colonial Populations with Possible Migrations Route