This year's gonna be wacky. There's more shows ending than easy to spot replacements, especially since OPM2 is seemingly a Hulu joint through and through. That basically leaves Mob II, AOT III Part 2, SAO III Part 2, MHA season 4 and whatever DB Super's replacement is called as the only guaranteed to land shows in the near term with something like JoJo Part V obviously destined for the block when it surfaces probably late next year. There's also very few obvious TOONAMI targets after The Promised Neverland in the typical Shonen or gritty action show with high production values fields. So either something wacky like Pop Team Epic, something slightly older that was ignored for awhile, or something truly out of left field that they've been working on for awhile for just this very moment.
Super, Jim Jam Part IV, My Hero Academia, HxH, Promised Neverland, SAO...pretty much everything not named after Boruto's dad ends this year.