Take a look at my build you can mod the case to fit wraith spire cooler which comes with the 3400g. Dropping the mb tray 15mm to 20mm. With a perfect fit. Going to try and fit maybe 120mm or 2400mm aio.
Just finished moding Inwin Chopin case to fit AMD Ryzen 5 3400g and wraith prism cooler (not the wraith stealth and with amd shroud removed only). Wraith Spire Cooler comes with the cpu. Motherboard tray mod only.
Inwin Chopin black case - modded
Asus rog strix x570-i gaming