Some are currently playing together, but only with major downtime to one or another. Anyway, here's a data dump listing every team's Top Two in VORP and in Win Shares (separately).
In each case the 2-man total is listed along with each individual. Teams have played 25 to 28 games, roughly 1/3 of the season.
Code: Select all
VORP   Tm   Player  VORP       WS    Tm   Player    WS
3.8   DAL   Luka     2.9      7.1   DEN   Jokić    4.6
3.8   DAL  Dinwiddie 0.9      7.1   DEN   Gordon   2.5
3.3   DEN   Jokić    2.6      7.0   DAL   Luka     4.6
3.3   DEN   Gordon   0.7      7.0   DAL  Dinwiddie 2.5
3.2   GSW   Curry    2.4      6.9   BRK   Durant   4.3
3.2   GSW   Wiggins  0.8      6.9   BRK   Claxton  2.6
3.1   LAL   Davis    2.1      6.9   CLE  Mitchell  3.8
3.1   LAL   LeBron   1.0      6.9   CLE   Mobley   3.1
3.0   CLE  Mitchell  2.1      6.7   GSW   Curry    4.0
3.0   CLE   Mobley   0.9      6.7   GSW   Looney   2.7
2.9   BRK   Durant   2.2      6.5   LAL   Davis    4.7
2.9   BRK   Irving   0.7      6.5   LAL   Reaves   1.8
2.9   MIL   Giannis  1.9      6.2   SAC   Sabonis  4.0
2.9   MIL   Lopez    1.0      6.2   SAC   Fox      2.3
2.7   BOS   Tatum    1.8      6.2   PHO   Booker   3.4
2.7   BOS   Brown    0.9      6.2   PHO   Ayton    2.8
2.7   IND Haliburton 2.0      6.2   BOS   Tatum    3.8
2.7   IND   Turner   0.7      6.2   BOS   Brown    2.4
2.7   SAC   Sabonis  1.7      5.8   IND Haliburton 3.7
2.7   SAC   Fox      1.0      5.8   IND   Turner   2.1
2.5   PHI   Embiid   1.7      5.7   MIL   Giannis  3.1
2.5   PHI   Harden   0.8      5.7   MIL   Lopez    2.7
2.4   PHO   Booker   1.4      5.7   NOP Williamson 3.2
2.4   PHO   Bridges  1.0      5.7   NOP   Nance    2.5
2.3   NYK   Randle   1.2      5.6   CHI   DeRozan  3.3
2.3   NYK   Brunson  1.1      5.6   CHI   Vučević  2.3
2.2   ATL   Young    1.1      5.6   UTA  Markkanen 3.1
2.2   ATL   Murray   1.1      5.6   UTA   Olynyk   2.5
2.2   MEM   Morant   1.5      5.5   NYK   Brunson  2.8
2.2   MEM   Bane     0.7      5.5   NYK   Randle   2.7
2.2   NOP Williamson 1.4      5.4   PHI   Embiid   3.2
2.2   NOP   Nance    0.8      5.4   PHI   Harris   2.1
2.2   OKC   Shai     1.8      5.2   OKC   Shai     3.8
2.2   OKC Isaiah Joe 0.4      5.2   OKC  J. R-Earl 1.5
2.0   CHI   DeRozan  1.1      5.2   MIA   Butler   3.0
2.0   CHI   Vučević  0.9      5.2   MIA   Adebayo  2.2
2.0   MIA   Butler   1.3      5.2   MIN   Gobert   3.0
2.0   MIA   Herro    0.7      5.2   MIN   Towns    2.2
1.9   UTA  Markkanen 1.1      4.9   ATL   Capela   2.9
1.9   UTA   Olynyk   0.8      4.9   ATL   Young    2.0
1.9   TOR   Siakam   1.3      4.6   WAS  Porziņģis 2.9
1.9   TOR   Anunoby  0.6      4.6   WAS   Beal     1.7
1.8   POR   Grant    0.9      4.6   POR   Grant    2.6
1.8   POR   Lillard  0.9      4.6   POR   Simons   2.0
1.8   WAS  Porziņģis 1.1      4.5   MEM   Morant   2.5
1.8   WAS   Beal     0.7      4.5   MEM   Aldama   2.0
1.4   MIN   Towns    0.9      4.3   TOR   Siakam   2.4
1.4   MIN   Gobert   0.5      4.3   TOR   Anunoby  1.9
1.3   LAC   George   0.9      3.8   CHO   Plumlee  2.0
1.3   LAC   Batum    0.4      3.8   CHO  Richards  1.8
1.2   DET Bogdanović 0.9      3.6   ORL  F Wagner  1.9
1.2   DET   Burks    0.3      3.6   ORL   Bol      1.7
1.0   SAS   Poeltl   0.5      3.5   DET Bogdanović 2.1
1.0   SAS   Vassell  0.5      3.5   DET   Stewart  1.4
0.9   CHO   Plumlee  0.5      3.0   LAC   George   1.5
0.9   CHO   Oubre    0.4      3.0   LAC   Mann     1.5
0.8   ORL  F Wagner  0.4      3.0   HOU   Şengün   1.6
0.8   ORL   Carter   0.4      3.0   HOU   Martin   1.3
0.6   HOU   Şengün   0.3      2.5   SAS   Poeltl   1.4
0.6   HOU   Martin   0.3      2.5   SAS   Vassell  1.1
The most productive duos at the top tend to be one superstar and whatever next-best (or most durable) teammate. But there's no Stockton or Pippen-level sidekick.
Knicks, Suns and Hawks may have the best 2nd-best players, though we aren't sure who is #1.