As the MLB trade deadline approaches on July 30, teams like the Houston Astros and Baltimore Orioles are actively exploring trades to bolster their rosters. The Astros are particularly in need of a first baseman after struggling performances, with potential targets including Ryan Mountcastle from the Orioles and Yandy Diaz from the Tampa Bay Rays. Mountcastle's strong hitting and under-contract status make him an attractive option, especially as the Orioles look to promote top prospect Coby Mayo. Meanwhile, the Rays are open to trading key players like Diaz, who could provide immediate improvement at first base for Houston. Other teams, like the Mariners, are also looking to acquire impactful bats, with discussions about potential trades heating up. Overall, the upcoming deadline may see significant player movements as teams aim to enhance their playoff prospects.