Where to start and what markets are recommended

[Isua Mbang]

So i am sure everyone starting new in real estate investing wants to start somewhere and really don't know where to start. I currently have 3 rental properties in Corpus and San Antonio, Tx and these were properties i lived in prior to renting. I currently live in Las Vegas and ready to expand my rental portfolio and needing guidance on where to start. I do know i want passive income and build enough of it to be done with my 9-5 job so any suggestions on which market to start in (I am open to all market to buy rental properties), I am looking to buy both single family and multi units as well. Any piece of advice or tips would go a long way. Thanks in  advance for taking the time to respond.