Not sure if I'd be investing in a small business at the moment until we see what happens with the US economy (e.g. hard landing, soft landing, etc.)

I'd also probably look into a franchise, although you may need more than the listed amounts to get in. Perhaps with a partner? In something that people will spend money on even in a recession (kids or pets or alcohol). Alternately, rental property(ies), but again may need more upfront.

As to loans, small business loan from the government, although I don't know what the rates are. Personal loan, Home Equity Loan, etc. but I'm sure rates are outrageous at the moment.

As to retirement strategy, hope you've been investing in the stock market throughout your life. Time value of money / compounding interest. Although, in today's market, I'd look at T-bills or CDs paying around 5%. Very low risk and probably not much of a lower return versus equities at the moment (which have higher risk).