I find GetResponse to be better with more features and better support than the other popular ones mentioned, and I've used them all.

Now, definitely, you have to pair up your property location with a tourist attraction/destination.I live in San Francisco bay so Lake Tahoe area is very popular. the net effect of AirBNB is that a lot of real estate around the lake/mountains has changed hands in past years and they stay rented 20+ days per month easily.

What are the most popular ones and also what ones would be very useful for me?

My opinion may or may not be popular here, but I would approach this strictly as an ROI question.

This was a popular concept in the eighties, until it the lenders started the their "due on sale clause" noise.  

I was a court house steps foreclosure buyer.So you can see those are all real popular occupations to those that might have a bent towards being green and or protecting the unfortunate folks that are losing their homes.LOL

There is a lot of bad information out there that new folks get tied up with, gurus all over the place and most fail to look deeper beyond what popular thinking may be.

Just because Opec opened the oil faucet recently does not mean that domestic oil will not be popular again.

You will likely be the most popular person in the room.

They seem to come up with some impressive ways to change houses to the "open concept" that is popular these days.