These are some 3D printer modifications and parts that I would highly recommend
Sections
2
Modifications
Spare Parts
Modifications
I would recommend this replacement extruder as you have a lot easier access to the filament than the original CR6-SE extruder. It is also a lot easier to put back together if you need to change the gear
Upgraded Replacement Aluminum MK8 Extruder Drive Feed for Creality CR Series and Ender Series
In need of a new hot end? I would recommend this one!
Creality 3D Assembled Hotend Kit Extruder with Upgrade Capricorn Bowden PTFE Tubing with Silicone Cover for Ender 3/Ender 3 pro/Ender 3 V2 3D Printer
I like to use a glass bed as it doesn't need replacing as much as the beds where you use a sticker
Creality CR-6 SE Smart Build Surface Carborundum Tempered Glass Plate with Special Chemical Coating 245*255*4mm
Spare Parts
In need of new nozzles? I would recommend these
3D Printer Nozzle Kit 0.4mm/ 5 PCS
Need a new gear to push the filament through your 3d printer? I would recommend these. If you don't have time to wait for them to arrive there's quicker alternatives on Amazon
1.29US $ 32% OFF|Gear Pulley 3d Printer Extruder | 3d Printer Extruder Feeder Gear - Mega - Aliexpress
I would recommend this Bowden tube set as it has everything you would need in it
For Bowden Tubing 1m Xs Series For 3 V2/ 3/ 3 Pro/ 5 3d Printer
Looking for new nozzles? I would recommend this pack of 8 nozzles so you never run out!