Help me for upgrading my gaming computer

Hello its my config actually :

   1. Processeur : Ryzen 5 2600 (6 cœurs / 12 threads, 3,4 GHz à 3,9 GHz boost)
2.  Carte graphique : NVIDIA GeForce RTX 2060 (6 Go)
3.  RAM : 16 Go DDR4 2666 MHz
4.  Alimentation : K550 550W 80 Plus Bronze
5.  Carte mère : B450 AORUS Elite
6.  Stockage : SSD 240 Go SATA

I would like to improve it, what would you advise me to improve first and by what means?