Listing just Martin and Miranda at 2B doesn't do the prospect section justice, especially with Steer, Julien, and Severino all profiling as guys who likely end up at 2B. The system sure is chock-full of infielders who can hit but likely are best hidden at 2B, and corner OFs who can hit, but are better off at 1B/DH.
With Polanco likely staying at 2B through 2023, I'm not sure what happens with the depth of 2B prospects. Gotta hope Miranda can hold his own at 3B, and Martin ends up in the OF, for starters.