@Daniel A. gave you some great information above. I'll give you my experience with it and a few recommendations. I self manage all of my rentals and have a goal to completely systemize my processes so my take might be a little different than Daniel's just because of my growth goals. I try to rent my properties leveraging as much technology as possible to save myself from meeting unqualified tenants for applications and showings.
I use Cozy to advertise, collect rent, record maintenance, etc. Cozy will post your property to Zillow, Apartments.com, and one other site. I have gotten a couple of hits off of Zillow but it's a little more time consuming since it sends individual emails for each inquiry that have to be responded to. This service is free to you and the tenants pay for background and credit checks. I don't charge an application fee because of this. You can check it out at Cozy.co
I also advertise to FB marketplace in our local rental page. I always get a ton of hits off of this but the majority are unqualified. It will absolutely fill up your messenger inbox with people asking how much the rent is despite it being posted in your ad. I have just implemented a bot function on my FB business page to automatically pre-screen tenants and direct them to my Cozy page to apply. I have not used this in it's entirety yet so I can't comment on it's effectiveness.
Starting with my last tenant, I hired a virtual assistant off of UpWork to screen all of my applications. She took the completed applications off of Cozy, called references, checked credit, reviewed the background checks, etc according to criteria that I supplied to her. We communicated all of the data through a shared Google Drive folder and it worked incredibly well. I paid her $15/hr and was in it total about $75 to find a great tenant. I literally didn't lift a finger to find my tenant other than scheduling a showing (My VA lives in Seattle). There are a ton of posts on BP about virtual assistants and it's probably a full day of reading if you go down that rabbit hole.
There are a million ways to find tenants but my advice would be that it's much better and cheaper to have your property sit vacant for a month or two than to get a bad tenant. If you plan on having more than one property, set up your systems now and you'll be able to build on it in the future without too much difficulty!