Most people when they start a new project they usually need some inspiration but they don't know where to find that. There are two main free sources that I like personally.
The first one is pinterest it has alot of boards that have people pinning stuff about everything starting from cooking to social media marketing to graphic design. I like pinterest because once you put your keyword in their search engine it is a never ending inspiration feed and when you click on one that you like it gets more similar stuff and that is really good to feed your memory with professionalism.
The second one is Behance/ Dribbble they are mostly similar to each other professional designers post their work there to get views and consequently get work so as you can tell people are posting their best work their.