Hi Connor!
Honestly, it all depends on what you are looking for. If you are looking for appreciation then you would look for data over the past maybe two decades to get an idea of the trend of that particular market and what the appreciation return is on average year over year (just don't rely on predictions).
If you are looking at cash flow then you can begin with the simple rule of thumb with the 1%-2% rule to get an idea of it may be cash positive (again just don't rely on this method). In example, some markets in Cleveland have homes that meet the 1% rule, but because property taxes are high, it essentially wipes out a positive cash on cash ROI. You have to do some digging to get an average of what the property taxes are going to be as well get an idea of what the rents are going to be in that area. You also want to get familiar with the size of the home is and what is selling and what has sold to get an idea if the idea is undervalued or overvalued. This is just a few strategies I use so I don't spend 6 hours a day staring at homes (now).
Once you adapt some habits that work for you then you'll know an investment worth running the numbers on. Hope this helps!