I have been looking online but can't find deals, Im in California but looking in Las Vegas and Arizona due to California being so expensive.

All they have done is fill out a piece of paper/online fillable form; nothing has been done with their information yet.

A bit overwhelmed with the deluge of information available online. 

You can start your search using the online directory.

I would look into the laws around this, maybe call the non-emergency police number and ask what happens if someone illegally parks in your driveway as I feel this is essentially the same as a stranger parking in your driveway as far as the law goes.Do your research then give the tenants a very stern talk with a hard deadline, and if the RV isn't out by 9a on that day have a tow truck standing by.

I have bought a house through an online platform, based on the inspection report they provided.

Minor interpersonal tip, but a piece of advice I heard online that maybe(?)

We use Chase and their online banking allows us to see images of checks and payments.The only issue is when tenants deposit cash.

I want to start a property preservation and online wholesaling business.

Read books, listen to podcasts, go to local meetups, look and analyze properties, make investor friends online, consume real estate content, go to physical and virtual conferences, to name a few. real estate is sort of a long game, you'll always be learning so once you make good habits the wins will follow