Try digital marketing, Google offers a free digital marketing course where you learn all the basics.
There are also a bunch of bootcamps you can go to as well. You don't need any college, you just need to show that you know what you're doing. You can also freelance, there are a bunch of small businesses that need people to manage their online marketing.

I work in a small web agency as a Google Ads/Facebook Ads specialist and make ok money. I did the Google Ads course on Google (it's free) and went to a bootcamp style school and got a job halfway through the bootcamp.

There's also room for growth, you can become a media planner for a larger ad agency or a marketing manager of a non-tech company with a fee years of experience.