Effective and unique strategies for marketing, then getting a tenant?

[Mark Torrefiel]

Good day, BP family! So far, you guys have helped me find the motivation to purchase my first investment property, find the right management software, and now I'm marketing my triplex. The title says it all, I'm looking for effective and unique strategies to market a unit that is available on my property. For background context: I'm interested in a long-term rental with the unit to offset my mortgage while I live in one of the units. The other unit already has a tenant. For now, it is a house hacking strategy. As a note, I am active duty military, scheduled to deploy sometime next year, and I have plans to rent out the unit I am staying in once that time comes around. 

So far, I used photos from when the previous owner marketed the unit. They aren't the best, so I do plan to find a photographer that would give better photos of the unit. I'm using the software Avail to collect rent from my other unit, as well as to mass market my available unit to about 20 different websites. Do any of you experienced investors/landlords/property managers have effective strategies you use to make a unit more attractive? Since this is my first rental, I'm not sure I can offer much in the way of rent specials. I am open to any and all suggestions, tips, or experiences anyone would be willing to share! Thanks in advance!