Seeking Business opportunities

[Hai Loc]

My partners and I have about $500k to deploy on an investment. 
I have extensive real estate experience but that amount of money cannot do much in my area. To be frank I am not interested in using this to invest in real estate and it’s not bc the uncertainties of the market but curious to explore other avenues. I am also familiar with Crypto and Stocks but we will just dabble on it. 

I was also think long joint venture but it’s gotta make a whole lot of sense. 

Anyone out there have any ideas on business models and I am not talking about a business that will boggle me down from 9-5