Best cpu for 7800xt

I currently have a ryzen 9 5900x 12 core and i notices while playing bf6 i need to upgrade my cpu as im getting about 50% usage rate of my gpu in game but my cpu is at 100% almost constantly so for 1080p gaming for games like bf6, cs2 and also VR what would bew the best option for a new cpu? I have a decent budget. any suggestions would be appreciated :)