I know someone has already suggested a Samsung oddessey and you can only import them currently, but why not a Windows Mixed Reality headset?
I bought my Dell WMR headset 3 weeks ago and I'm glad I picked it over the rift, like you I was not happy about the res with the OR. Plus you don't have to pay £400 or £500, I got mine for £279 and it's great for IL-2 Sturmovik, Startrek bridge crew and Batman VR.
It's really easy to setup and you don't need extra usb ports, it works at 1440 res, has a better FOV and works and Steam, windows store and OR store with revive software.
Just measure your pupillary distance first, if you decide to get one.
Also look at some youtube videos, this is a good one