2. Christian Walker
It shouldn't come as a surprise that another first baseman is among the picks for the team's DH role. After all, the team went from having only Goldy to having 3 MLB-Startable first basemen in a matter of two years. Henceforth why I have included Christian Walker.
Christian has played for the Diamondbacks since 2017 and been the mainstay at first since 2019. He's known to be a solid fielder, especially when healthy. Last year, he dealt with a reoccurring oblique injury. Despite that, he had 4 defensive runs saved (DRS), a UZR rating of 2.3, and a range rating of 2.5. If you're wondering whether those numbers are good, they are since they are above zero.
Walker is definitely capable of being a DH with his light-tower power and clutch hitting. However, he might be best served to be the regular defensive first basemen. At least until Seth Beer or Pavin Smith can prove themselves there. I believe in Walker bouncing back this year. If the season ever happens that is.
This next name might surprise you although it shouldn't. He's a mainstay for the team and it's time to let the young ones play.