Age old question, buy or sell then reinvest to multi-family

[Karl Forshee]

Here's the situation.  In Caldwell Idaho I have a single family home that I paid cash for back in 2019.  I had a single renter from that time until now. the tenant is pack out the last of their items tomorrow.  The value of the house has increased by 3 times from what I paid for it. no loan on it.  So is it better to leverage the equity by selling it and using a 1031 exchange to say a multifamily unit? or keep it as a rental.  I'm worried that by renting it I would be losing opportunities to get more cashflow.  My end goal is to increase my cash flow.  

Since I'm not finding any multi-family units, what's the best way to find them?  location doesn't really matter to me at the moment as i'm living in colorado north of Denver where everything is overpriced.