What is a good image viewer?

The only thing I miss since switching from Windows is a decent image viewer.

I used Honeyview on Windows and it was perfect for me.

It had a ton of features that I miss sorely.

The biggest feature was "zoom lock". I could zoom in and fit the image to the perfect size when reading manga and it would keep the zoom level for the rest of the pages. Having to refit the page every time I finished reading it is a pain in the ass on any image viewer.

It could also open up galleries from .zip files without having to unpack it first.

When I read through all the images in one folder, I could effortlessly go to the next folder instead of having to close the program and open the next folder manually.

Honeyview could even convert images into other filetypes and sizes and could open just about any image file ever.

As a weeb with a huge manga collection, Honeyview was absolutely perfect for me.

The default image viewer in Linux sucks. What are some image viewers I can use that have similar functions to Honeyview?