I need help

I'm a new plant parent! I have a polka dot plant, I know nothing about other than her name. I'm not sure what to do to make her bushy and how care for her beyond the basics. I also have an Umbrella Tree I know next to nothing about. And the rest I'm not sure what they are. I've image searched on google and haven't found any results. I need help lol. I saved them from someone who was just going through them in a dumpster when they were moving. I couldn't let that happen so I adopted them all. Please help me figure out how to parent my new babies lol 😂