Best tool for dehooking & portable landing net for land based?

Long story short I hooked a flatty in the gills and was trying to get it out gently with pliers I bought from Bunnings. I'm pretty sure I did a lot of damage before finally being able to get it out despite trying to be gentle... Feel bad that it probably died after being released because of me.

So I'm looking for a proper tool to dehook fish easier or maybe more purpose built pliers that can maneuver in small fish mouths easier.

I'm also looking for a portable landing net. Has to be something that can fit in a backpack because sometimes I take public transport to go fish so it all needs to fit into a backpack. Ideally it'd have telescoping handle if possible but the main criteria is that it fits in a backpack.

Appreciate any recommendations!