I don't know if it's behind a paywall but NYT has a chart showing which 737 MAX operators have grounded them as of today.
https://www.nytimes.com/interactive/...-airlines.html
Grounded - # of 737 MAX in operator's fleet
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China Southern Airlines - 22
Air China - 15
SpiceJet - 13
Hainan Airlines - 11
Shanghai Airlines - 11
Xiamen Airlines - 10
Lion Air - 10
Jet Airways - 9
Shandong Airlines - 7
Shenzhen Airlines - 6
SilkAir - 6
Ethiopian Airlines - 4
China Eastern Airlines - 4
Lucky Air - 3
Cayman Airways - 2
Eastar Jet - 2
Fiji Airways - 2
Fuzhou Airlines - 2
Kunming Airlines - 2
Okay Airways - 2
9 Air - 1
Garuda Indonesia - 1
Comair - 1
Not Grounded (partial list)
====================
Southwestern Airlines - 34
Air Canada - 24
American Airlines - 24
Norwegian Air - 18
TUI fly - 15
WestJet - 13
FlyDubai - 11
Turkish Airlines - 11
Smartwings - 7
GOL Airlines - 7
Aeromexico - 6
Aerolineas Argentinas - 5
Oman air - 5
(remainder omitted for brevity)