2028? Sure, obvious because Schwarber & JT likely have hit (in Schwarber's case) and accelerated (In JT's case) their decline slopes.
2026 and 2027? Not as obvious. If we can get Schwarber at 4 yrs or less (hard, I know), you might get half the deal of good production before the bad moon rises. For JT, I would not go beyond 2 years. That 2yr/$34M deal could work, roughly $17M per. If he delivers 2.0 WAR or better (he was 2.6 this season), then you break even.
The main reason Suarez, besides his injury history, is the least likely to be signed is that we have pitching depth whereas we have very little at C. Schwarber is being signed for his production, but even more so for his leadership and clubhouse presence. He has become the de facto captain and trend setter. Harper could be that guy, but seems content to let Schwarber carry that mantle.