I don´t know which psu to buy! Help me pls

hello! I bought an RTX 4080super, Ryzen 7 7800x3D, and 32GB RAM. But I don't know what specific brand and model to buy, I have read that there is controversy with the ATX 3.0 (I don't know) I am new to this. Sorry if my English is not the best! I hope you can help me.