This is a highly specific question to pose to a global community. What I recommend is searching listings in your target area on Airbnb and other platforms to find the rates for comparative properties. As one shortcut, you can use the website AirDNA, which scrubs a lot of this data so you don't have to.
Bear in mind that annual occupancy rates are going to be as useful to you as room rates, and they're more elusive because data-scrubbers can't distinguish between selectively blocked dates and booked dates. And of course, at the other end of your calculation you need to account for all the costs (utilities, insurance, maintenance, labor, and the value of your own time expenditure).
