New Investor with Potential Wholesale Targets, HELP PLEASE

Hello Everyone! I’m still relatively new to Real Estate Investing and currently working towards my first deals. I have went driving for dollars and found a couple homes that look perfect for a potential wholesale deal (grass two feet tall, cracked front window at the front of house, and 25-30 foot tree in front yard that has been dead for what looks to be a few years at least). These homes are on the outside of Sacramento, CA in the town of Galt just past Elk Grove, CA. How should I go about starting the process, I know I can look up the owners name off the city website but would you then try and skip trace the contact information? Or would you first try and send the homeowner a letter, potentially drop a letter off at the front door? I appreciate all the help from the community and fingers crossed we can make a deal!