Here’s a cool, animated graph that shows the change in the ethnic makeup of MLB since the late 1940s. The number of African-American and Latino players drew even in the early 1990s. The percentage of Asian players is still barely more than a blip on the graph, but that does seem to be changing.
I came across this graph from Statista listing the ten MLB teams with the most Facebook followers. The numbers listed are in the millions, and the data is current as of December 2017. I’m sure most of the teams that made the list would come as little or no surprise to most folks.