Best exercise for man boobs

40/m, genetics suck as my dad has a nice rack. I have a decently strong chest, but I’ve never been able to form them and they’re just kinda pointy and sag. Can’t tell if it’s gynecomastia or just fat at this point, but trying diet and exercise first.

What are the best exercises to flatten the chest to be less point and more flat? I’m not looking to bulk up the chest, just want to tone it really. Thanks all