US Senate seats that will put Democrats back in the majority in 2021/2022 is both of the GA seats or

PA(OPEN Toomey-R),NC(OPEN Burr-R)and/or WI(Johnson-R)
Democrats are going to win all of the Democratic held US Senate seats up for re-election in 2022.
Safe D
36)CA(Padilla-D vs Bass-D) similar to 2016 and 2018.
37)HI(Schatz-D)
38)NY(Schumer-D)
39)CT(Blumenthal-D)
40)MD(Van Hollen-D)
41)VT(Leahy-D or Welch-D)
42)IL(Duckworth-D)
Likely/Safe D
43)OR(Wyden-D or Brown-D)
44)WA(Murray-D or Jayapal-D)
Lean/Likely D
45)CO(Bennet-D)
Tilt/Lean D
46)NV(Cortez Masto-D)
47)AZ(Kelly-D)
48)NH(Hassan-D)
Tilt D
49)PA(OPEN Toomey-R)Lamb-D
50)WI(Johnson-R)Barnes-D
51)NC(OPEN Burr-R)Jackson-D
Both of the GA US Senate seats are being decided on 1/5/2021 runoff. It is a pure Tossup.