Just make a point of talking to 5 to 10 Thai girls every day. Put yourself in different circles. Obvioualy sitting in a bar all day is going to attracted bar girls.. Hanging out in a hospital canteen during lunch will get you drs and nurses.... Start collecting phone numbers and before you know it you'll have that many girls chasing you, you'll be busy AF. Thai women want falang man with stability.. They actually out there looking for you. Thai women don't want Thai men..
Open the company and get the visa. Build the phone app and make the company rent somewhere for you to live so as to reduce your taxes.. Property in Thailand isn't an investment at all..
I've done both and the 18 days waiting for the passport to be returned and the cost of tracked courier of my passport for a 60 day tourist visa was 2 Australia dollars more expensive than getting 30 days on arrival and 30 days extension and I didn't have to show all the bureaucratic bullshit they ask for to back up your tourist visa.. Its alot easier to get an extension.. I've never had to wait or spend longer than 4 hours door to door doing an extension if you get there at 7am and wait till 830 open. Can be home by 11am. Depends where you do it also..