I agree with Bruce, Airdna is awesome for general market trends, it can be a bit shallow for deep dives.  

Local Trends: Watch for changes in the area like major employment shifts and construction projects.Ghost Ads: Post fake ads before purchasing a community and gauge your activity.

After going to afew REI meetups with a group I am in I have noticed a common trend that many investors love New Brunswick.

However, I don’t think you’ll be as bad as some people are thinking, especially since the market is shifting and interest rates are trending down.

The trend I've observed over my career, having assessed over 1000 MF transactions the focus tends to be predominantly on the Net Operating Income (NOI), rather than the replacement value of the asset.

Cap rates remain in constant flux, but similar properties in the same market should trade around an average, which itself is trending up or down over time. 

I just acquired a Section 8 duplex and wasn't sure if it was smarter to go with white or stainless steel appliances in the kitchen?

Quote from @Randy Steele: @Sean L.

Diversify your investment portfolio by considering properties in different markets and asset classes.Continue educating yourself about real estate investing strategies, market trends, and best practices.Consider starting with a single property to gain experience and familiarity with the out-of-state investing process.Remember, investing out of state requires careful planning, due diligence, and ongoing management.

I invest in a lot of rural markets and there is zero affordable housing, and many of the communities have vacant slips.These trends will become more prevalent over the next few decades and you will see legislation dealing specifically with these trends.