If you're new to Slime Rancher or if you don't know how to progress, here are three guides with tips and tricks that could help you starting your journey (beware, spoilers!):

• TheGamer Guide
• BlueStacks Beginner Guide
• Steam Community Guide

Don't forget to check the wiki: Slime Rancher Wiki

You can also watch this video : Slime Rancher Beginner Video Guide

Have fun!