Specs (under the header ‘design’) say:
Length 158 mm
Width 71.8 mm
Thickness 9.89 mm
Weight: 189g
Plugging those dimensions into a phone finder search (e.g.: gsmarena, no spreadsheet needed) will tell you there’s no phone with the exact same dimensions. That’s with fairly small tolerances, so there may be some universal case models that are flexible enough to still fit. Some physical stores may allow you to test the fit, they may even have nice staff that can help you look for a case that fits.
This forum topic could also be useful for alternative. There’s a couple of other topics floating around about the lack of flip cases. I’ll leave that search as an exercise for the reader.
If you get grumpy responses or ‘let me google that for you’ links, it might be because people feel you’re requesting that someone does your homework for you.