House Hacking for the first time. Advice?

[Tyler Sample]

About to close on my first home. 3bd/2ba. Any videos or ways on screening tenants you guys recommend? Going to advertise mainly by word of mouth but would like to know how to handle people's credit information, pay, etc when deciding who I really want living with me. Trying to keep it simple but I want them to sign a contract and do it somewhat official. Any advice?