I've been having tooooooons of issues with the Nightwing matchup lately. Dude pesters me from a distance with Wingdings and Seismos, switches to Staff d1d1d1d1d1d1d1d1d1d1d1d1d1d1d1 into his hitconfirm string and Shazam ain't got a thing to do against it. As for something I found for this matchup, if Nightwing does 1 Forward 1 into Seismo up close, Shazam can interrupt with stand 1, which can lead into 112, which is fantasaaaasstic.
Also, for the Grundy Matchup, I found that doing Back 2 on reaction to his Back Forward 3 grab makes Shazam safe and un-grabbable, while leaving him close for a full combo punish on Grundy. Also, Shazam can interrupt Grundy 112 into swamp hands with D1, haven't tried 112 in this scenario.
How are you guys handling the Harley Quinn matchup? I've only come across this character like 5 times, but she starts backing away and doing the gunshots then suddenly dashing in and kicking my feet into a 42% bnb. I don't like it. TYM pls halp.