There are a lot of positive ROI options in that bucket.To answer your question anything on the beach will rent well. 

I am looking into my STR options but from what I have learned this is a overflowing market in the area and the vacancy's are increasing so I may look into mid term and long term only.

Explore the possibility of doing liability insurance instead, if you don't have much equity it may be your best, and much cheaper option.  

There are a few options(1)You can get connected with the larger wholesaler firms in the area (2) go through PCPAO site and skiptrace the buyers of similar properties as yours, (3) hunt down the agents involved in the sale of properties similar to yours or go to local REI meetings and pitch it to the investors there. 

To leverage the equity for financing my next deal, a second mortgage seems like a more cost-effective option.

I have an option in a 35 acre parcel that I am flipping to one of the major regionals here and its part of a 700 lot project the off sites are about 25 million.

Looking forward to reviewing these options.

As others have suggested, you could get a conventional or FHA loan if you want lower down payment options.

My view is there is more protection on a wrap than a sub to and with the right disclosures and underwriting can be an alternative option. 

Shared housing provides affordable, flexible rental options for young professionals, remote workers, and students.As shown above, co-living properties have more demand than traditional two-bedroom units and appeal to a wider tenant base.2.