Here are the NFL stadiums that use real grass as of the latest info I found:

Team Stadium Grass type
Arizona Cardinals State Farm Stadium Bermuda grass
Baltimore Ravens M&T Bank Stadium Bermuda grass
Chicago Bears Soldier Field Kentucky bluegrass
Cleveland Browns FirstEnergy Stadium Kentucky bluegrass
Denver Broncos Empower Field at Mile High Kentucky bluegrass
Jacksonville Jaguars TIAA Bank Field Bermuda grass
Kansas City Chiefs Arrowhead Stadium Bermuda grass
Las Vegas Raiders Allegiant Stadium Bermuda grass
Miami Dolphins Hard Rock Stadium Tifway 419 Bermuda grass
Pittsburgh Steelers Heinz Field Kentucky bluegrass
San Francisco 49ers Levi’s Stadium Bermuda grass, perennial ryegrass mix
Tampa Bay Buccaneers Raymond James Stadium Bermuda grass
Tennessee Titans Nissan Stadium Bermuda grass
Washington Commanders FedExField Bermuda grass
[7][5] A couple of notes: some stadiums have changed surfaces over time, and a few shared stadiums or special setups can make lists vary slightly by source and season. ESPN’s overview also notes that NFL field surfaces can change and should be checked by stadium rather than just by team name.

If you want, I can also give you the turf stadiums in the same format.