National Master Caleb Denby will surprise you with the a3 Nimzo, so you can surprise your next chess opponent!
2022.02.22
Rameshbabu Praggnanandhaa vs Andrey Esipenko, 84th Tata Steel Masters (2022): E29 Nimzo-Indian, Saemisch, Capablanca variation
https://www.chessgames.com/perl/chessgame?gid=2237885
Magnus Carlsen vs Peter Leko, 16th Amber Tournament (Blindfold) (2007): E24 Nimzo-Indian, Saemisch variation
https://www.chessgames.com/perl/chessgame?gid=1453634
Caleb Denby vs. Julian Proleiko, 2022: E26 Nimzo-Indian, Saemisch variation