The minute I post a rental on Facebook Marketplace I'm flooded with Section 8 requests.

Wholesale outlets are a great place and facebook marketplace depending on how large of a project you're working on .

Facebook groups for landlords: I would search on Facebook for a landlord group and search posts or posts yourself what you are looking for.

I think each market is unique but I list on the majors (Zillow, RentRedi) but have received the most attention on Facebook Marketplace.

For example, if you find a PM that uses a 600+ credit score minimum for the portfolio they manage and you want 700+ then you are allowing the PM to follow less strict guidelines and opening you home to greater risk.For the marketing side of things, I'd recommend using Zillow, Apartments.com, Redfin, and Facebook for potential word of mouth in your sphere.

(If you are going to do this right I would say $5K a month and look into incoming lead sources like facebook and google pay per click.)Good Investing...

Even facebook will have some.

Facebook marketplace as well. 

You can also find real estate investing groups through meetup.com, facebook, or a Google search.

Google ads and Facebook ads.I hope this helps.