What are the options to invest in real estate?

Hi All, currently I have around 50 lakh of residential property which we are planning to sell as it's price has reached peak and predictions say it's not gonna increase anymore. So, we are exploring options to buy new residential/commercial property anywhere in Surat city. It should be good in terms of appreciation and rental income. Even if there are small shops priced at maybe 10 lakh each is also good. I am not sure from where to start. Could you guys please give some leads? I prefer properties to be Gujarat rera approved as it brings some amount of trust compared to non-rera approved.