If you're looking for anime similar to Big Six, you might like these titles.
The first female professional baseball player who strikes out sluggers with her magical pitch... The manager who makes every effort to amend the Baseball Regulations so that she can join the pros... The separated twin brothers who couldn't have met each other if they weren't both totally absorbed in baseball... This series describes the joys and distress, the glory and frustration of those who enthusiastically love baseball.
For Goro Honda – now Goro Shigeno – leaving his friends in Mifune was a difficult experience. Not that there’s much time to dwell on the past – no sooner has he moved schools when another team demands his exceptional baseball skills! This time, Goro joins Hakata South, a little league team that hasn’t won a major competition in years and has a coach with a bad attitude. What’s more, although Goro quickly establishes himself as the ace with positive results, this triggers some bad feeling amongst his peers. Add to that his severely damaged shoulder and worrying developments in his adoptive family, and it looks like Goro’s troubles are far from behind him.