This far out, I don’t know how you justify anything beyond Lean R.
Democrats have to win 2 of these 3 races in order to take the senate : MT, OH , TX . Now while you can argue MT is a tossup , OH and TX are likely R in terms of likelihood in going for the GOP even if they are Lean R in terms of margin .
Likely seems like a bit much. In 2018 OH-SEN was only about a point right of the nation; it was 10 points right in 2016 and 12 points right in 2020. Let's say Brown keeps Ohio five points right of the nation somehow; Biden winning the nation by 5 points is within the realm of possibility. Definitely optimistic but not out of the question.
With respect to Texas, Trump won it by <6 points, it's trending left, and Cruz will underperform. Again, not Likely R