I need a new phone BUT...

I want to get a new phone, as the title says. I currently have a Redmi 6 but it's kind of outdated and I can't find phone cases or phone film for it anywhere, so I just have a really broken phone case and no phone film at all. I want a new phone but I can't find anything I like. I've grown used to how compact and tiny the Redmi 6 is and most modern phones are big. Can anyone recommend me a phone that has a good camera, runs smoothly AND looks similar in design to the Redmi 6?