(Starbucks / yoga studio / craft brewery /boutique cookie,coffe or ice cream shop  are the easiest targets)-Activation of dormant retail sites-Increased foot traffic For B to AAbove also apply-Home valuations (are homes in the increasing at rates above nearby or similar neighborhoods)-Is it walkable or are projects in place to make it highly walkable for residents-Is it near highly desirable activity centers -is it unique (for example - Can it get historic designation)

As for other amenities, some crowd-pleasers that won't break the bank are coffee maker + starter pack of pods, basic workout equipment (yoga mat, resistance bands), phone charging stations by the beds, and basic kitchen essentials like olive oil, salt/pepper, coffee filters, etc.

We converted a old restaurant on the property to a coworking lounge, redid the pool and built out the roof to a entertainment center with fire pits, lounges, bubble chairs, barbeque, large screen TV, music, yoga mats and amazing views of the ocean and city lights.It is designed for coworking/coliving for business professionals and entrepreneurs who want to...Live where they work.

I just put Goat Yoga options as a new one at my bigger house properties with some land to try out with a local company lol. 

I teach yoga here, own a business and we likely know some of the same people - it's not a big area!

In one of my units I have dumbbells, a yoga mat and bands.

I teach private yoga and have been toying with the idea of adding it as an experience to Airbnb for my guests.  

because lord forbid ya go a week without the $300mnth Goat Yoga membership, or the daily $10 non-fat triple soy late caramel twist double shot stirred not shaken starbucks....

I think you should maximize the guests and maybe offer a small weight set and yoga mat. 

Additionally, try collaborating with local businesses like spas, wellness practitioners, yoga, wineries/taprooms, etc... and try some messaging with them around wanting to promote them in your blog and on your property.