Advice needed: 40K to 80k for 1. sf rental airbnb 2 duplex HH

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hello,

I'm 27 and been reading every real estate book, podcast, and forums I can. I need advice on what to do with funds i have for investment. Been looking for 2 years now in Philly and I've always been very close to buying. 

40k to 80k for either

1. buy single family for rental on Airbnb or traditional 175k to 250k purchase price with 25% down looking for 8% CoC return 150-200 per door. ( open to the midwest etc )

2. House hack a duplex putting 10-15% down looking to live in one unit for 1 year then move out repeat the process.

any sight on which is best and advice on what i can do to take action while i wait for a property to come up. Seems inventory is very low in many places.