Hope you are doing great.
We can start your project immediately, but it would be much better if we can have a discussion in detail for your social media chat app requirements.
I have a team with good experience in Laravel, Python, Wordpress, Woo Commerce, Angular JS, React JS, Responsive website etc.
You can also opt for secure development which will help you with a layer of data's security, which may of course cost a bit more than your actual development.
Looking forward for your response with a ray of hope.
Thank you and Regards,
Kaivashin