https://mangadex.org/title/28700/bungo
In a town with no baseball team, young Bungo spends his days throwing the ball he received as a gift against a wall until Yukio Noda, Japanese representative youth baseball player, appears before him and an unexpected showdown ensues! After a chance meeting in middle school, these two enroll in Seio Senior where they struggle to make it to Koshien with everything they have.
If you like good ol'fashoned baseball manga then this is right up your alley
