I've been looking for the same thing for my Samsung S10. You'll have better luck as more cases are built specifically for iphones.
One to consider, although it doesn't offer any weather protection, is the Juggernaut IMPCT. It has an enormous lip and was built with the military in mind. I've order one for my S10 but it hasn't arrived so I can't comment on it beyond what is on their website.
https://shop.juggernautcase.com/products/impct-iphone-xr.html
Another option is the Ghostek Nautical Extreme Waterproof.
https://ghostek.com/collections/iph...ugged-heavy-duty-case-cover-nautical-2-series
There is a guy on YouTube who is excellent and does lots of thoughtful and experienced reviews of smartphone cases. Here are some of his videos about various iphone XR cases. I think he recommends the Griffin Survivor Extreme.
https://www.youtube.com/user/ASDIncYYC/search?query=iphone+xr
Here is a video about Juggernaut although the one in this video is their original case which is not made for the XR. Only the IMPCT case is which is not waterproof.
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