Recommendations for aftermarket speakers for Honda Civic 8th

[Distorted Vision]

I'm new to car audio and I'm looking for recommendations for upgrading the OEM speakers using the existing headunit in a Honda Civic 8th generation (2005-2011).

I am not looking to install an amplifier. I was wondering if anyone can please recommend speakers? I know they are 6.5" but I'm unsure about the depth and other requirements. My budget is £75 per pair. I'm looking to replace both front and back.

Is this a simple job using these?

https://www.amazon.co.uk/gp/product/B01G6W7BFM/ref...

Edited by Distorted Vision on Saturday 11th May 23:35