A not so quick look at a few of the cooling ducts available to print for your Ender 3 V2 Printer

Satsana Duct for Ender 3 V2 Single 4010 fan Blower
https://www.thingiverse.com/thing:462...

Satsana Duct for Ender 3 Pro Dual 4010 fans
https://www.thingiverse.com/thing:481...

Satsana Duct for Ender 3 V2 Single 4010 fan Axial
https://www.thingiverse.com/thing:483...

Ender7 style fan duct with dual 4010 blowers
https://www.thingiverse.com/thing:489...

Quiet Cooler for Creality Ender 3 v2
https://www.thingiverse.com/thing:496...

Headlock__Dual_FanductV2
Original file not my modified version.
https://www.thingiverse.com/thing:502...

VORON Fan Duct Ender 3 V2
https://www.thingiverse.com/thing:491...

BRISS fang free version
https://www.thingiverse.com/thing:463...

BRISS fang latest '
https://cults3d.com/en/3dmodel/tool/...

Stock Ender Replacement duct
https://www.thingiverse.com/thing:473...