There are a few ways you can find a list of startups. One way is to use a startup directory like this one: https://www.startupblink.com/. This directory includes a list of startups around the world, organized by country and city.
Another way to find a list of startups is to use a search engine like Google. Just search for “startups” and you’ll get a list of websites that feature lists of startups. For example, this Forbes article lists the top 100 startups in America: https://www.forbes.com/sites/alexkonrad/2015/08/10/americas-most-promising-companies-2015-The-complete-list/#4f85bcb4146e.
Finally, you can try reaching out to startup accelerators, incubators, and co-working spaces in your city or region. These organizations often have lists of startups that are associated with them.