I've been looking into Singapore REITS which return 5 to 8% and I believe (although need to confirm) have no dividend withholding in SG and are not taxed in HK.
Other than that, plenty of properties in Ireland (I'm from there) offering 8 to 10% gross yield at the moment and Ireland and HK have a tax treaty as well.
If you have never worked in the hotel industry, you should consider a lot of factors before investing.
Operating a hotel requires a large amount of upfront capital which normally takes a long time to recoup. There are a lot of risks involved e.g. competitors, airbnb, and even those affecting the whole market, not just your hotel, such as exchange rates, tourism to your location, the local attractions etc.
The tourism industry is usually seasonal, so be prepared for some months when you are loss making.
The hotels I was looking for are in Australia, and I found them on some website (like businessforsale, or something like this). Now I can't find the website (I bookmarked it on a computer I don't have access right now). I think with the very weak AUD, that would be a very good return, though of course there are many risks, as many of you wrote. Thank you for your feedbacks!