Top 5 Free-Agent Hitters to Complement the Red Sox Lineup

The Boston Red Sox are already looking ahead to the 2026 MLB season. They’re not just focused on headline stars like Alex Bregman, Kyle Tucker, or Pete Alonso.

The front office seems set on finding a cost-effective complementary bat—or maybe two—that can deepen the lineup, protect the core, and add some positional flexibility. That means they’re eyeing a range of mid-tier free agents to fit around pieces like Triston Casas, all while keeping payroll and contract lengths in check.

Red Sox Strategy: Depth, Versatility, and Value in 2026 Free Agency

Boston looks ready to target hitters who can move between positions, handle DH duties, and deliver steady production. They’re not after massive, long-term deals here.

The plan? Add quality veterans on two- to four-year contracts, most projected to come in under $40 million total, according to The Athletic and MLB Trade Rumors.

This gives the Sox a way to reinforce their lineup around their stars and hedge against injuries. It also steers clear of the kind of contract that can weigh down the payroll for years.

Within that framework, a few interesting names have popped up as potential fits.

Rhys Hoskins: Power Bat to Pair With Triston Casas

If Boston commits to Triston Casas as its everyday first baseman, Rhys Hoskins feels like a logical target as a complementary piece. At 33, Hoskins isn’t a rising star anymore, but he’s still a legit middle-of-the-order threat.

He put up a .237 average and a .748 OPS for the Brewers in 2025. That’s solid, if not spectacular—shows off his power, but also his streakiness.

Injuries have slowed him down lately, but Boston could use a right-handed bat to balance things out and soak up DH at-bats.

For the Sox, Hoskins fits best as:

  • A primary designated hitter who can occasionally start at first base
  • A veteran insurance policy if Casas struggles or gets hurt
  • A two- or three-year deal at a reasonable AAV? That’s a classic low-risk, medium-reward move.

    Ryan O’Hearn: A Steady Stopgap at First If Alonso Isn’t in the Cards

    Ryan O’Hearn brings a different kind of value. If Boston manages to re-sign Alex Bregman but misses out on Pete Alonso, O’Hearn could be a short-term fix at first.

    At 32, O’Hearn is the kind of player contenders quietly rely on. He offers:

  • Consistent contact skills and can avoid long slumps
  • Moderate power that fits more as support than as a lineup anchor
  • He’s not the star fans might dream of, but as a stopgap, he fits Boston’s plan—solid production on a reasonable contract. Plus, he keeps things flexible for a future splash at the position.

    J.T. Realmuto: Veteran Catcher Turned First Base/DH Hybrid

    One of the more surprising names on Boston’s radar is J.T. Realmuto, long considered one of baseball’s best catchers. By 2026, Realmuto will be spending less time behind the plate, which actually lines up with what the Red Sox need.

    Realmuto could fill roles like:

  • Part-time catcher, mentoring both the staff and younger catchers
  • First base and DH option to keep his bat in the lineup
  • His versatility and leadership add value beyond just stats. He’d bring stability and playoff experience to a club that’s trying to get back into the mix.

    Seiya Okamoto: High-Upside International Swing for First Base

    Seiya Okamoto might be the most intriguing upside play. The 30-year-old Japanese star is expected to test MLB free agency and has the tools to be an impact bat at first base.

    There’s always some risk and uncertainty with international signings:

  • His power and approach might not fully translate to MLB pitching
  • He could need time to adjust to a new league and lifestyle
  • Still, for a team willing to take a chance on upside within a reasonable contract, Okamoto could be a bargain if he comes close to his ceiling.

    Jorge Polanco: A Swiss-Army Knife Infielder With Real Offensive Punch

    Not many players on the market match Jorge Polanco’s mix of positional flexibility and offensive output. After a strong 2025 with the Mariners, Polanco has reestablished himself as a dependable run producer who can move around the infield.

    Polanco, 32, brings:

  • Ability to play second, third, and even first base if needed
  • Solid offensive production, with enough pop to hit in the top or middle of the order
  • For Boston, he’d act as a lineup stabilizer—someone who can fill multiple roles, cover for injuries, and give the manager creative options with matchups and rest days. It’s the kind of flexibility that really matters over a long season.

    Contract Outlook and How These Targets Fit Boston’s Bigger Picture

    Look at this group—Hoskins, O’Hearn, Realmuto, Okamoto, and Polanco. They all share a key trait: controlled cost and contract length.

    Industry projections expect deals in the two- to four-year range. Most of those contracts come in well under $40 million total.

    This setup lets the Red Sox:

  • Bolster their 2026 lineup without losing future flexibility
  • Add experienced, versatile bats to support their core stars
  • Steer clear of long-term commitments to aging players
  • Boston’s trying to map out a path back to real contention. Moves like these—smart, targeted, maybe even a bit under-the-radar—could make the lineup deeper and a lot more dangerous.

     
    Here is the source article for this story: Ranking the 5 best complementary free-agent hitter options for the Red Sox

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