Extending wifi range with minimal Or no signal loss

Hi

I am looking for some advice. I am considering extending my network range and trying to decide on the best option.

My current set up: wireless router on 1st fl. Dual band

Option 1) buy powerline adapter and dual band access point and plug in on 2nd floor

Option 2) buy range extender

Option 3) access point or another router as bridge.

Any feedback would be appreciated. Thank you