I would recommend looking on portals such as https://www.upwork.com/
You can choose what types of small jobs up to bigger projects fit you for the time you have.
In portals such as this you can check the history of the client. Sometimes they may not have much history there but it may result from the fact that they have just signed up to the portal. You can see what other people who worked for them think, etc.
You can also filter contracts by those per hour and being fixed price. Even if it's per hour clients may want an estimation, so be ready for that. Fixed price does not have to be an evil if you have clear specification and add up to your calculation some percent of extra time you may need before you declare the amount of time needed.
Don't get discouraged if you don't get the answer from everybody, it's huge portal, many people apply for a given job. Just do your best while applying and send the info that really matters for the given project. Show how you can be an asset for them, show that you care.
The more small jobs you do, the more recommendations you get and the bigger chances of next jobs are. Be careful about your reputation there, create nice profile, add your current portfolio there, and links to your socials (e.g. Github, Linkedin, Twitter, Medium, etc)
You can repeat the same on similar portals. Good luck and ask if you have any other questions about what I mentioned, hope this will help you!