TRON has two standards that could help you in ICO. TRC10 & TRC20. TRC10 is the basic token standard that is easy to create. Yet, it has a few issues. TRC20 token has more reasons to be used in ICO. It is an updated version of TRC10. As a matter of fact, TRC20 implies smart contracts. So you will require the guidance of an expert to finish the job. Or you can just hire a TRON token development company to do your work.