Best Export Settings for TikTok? 4K 60fps vs. 1080p 30fps or 60fps?

I have a mix of footage recorded at different resolutions and frame rates:

• 1080p 30fps
• 1080p 60fps
• 4K 30fps
• 4K 60fps

I want to upload them to TikTok with the best possible quality and minimal compression. Based on what most people recommend, should I export everything in 4K 60fps or 1080p 30fps or 60 fps from CapCut?

Which option will retain the best quality while avoiding unnecessary compression?