Read whitepaper or litepaper and follow there promise and token features after that check token contact And match the features of the contract address with the words of the cables. If all goes well then follow their developments regularly. If you find a development match with their promise, you can decide to invest there
All projects after the public sale program have been developed very well according to the roadmap but cannot be used as a basis for trusting the project completely because some suspicions were found after the development of the next roadmap stage, my suggestion is to bookmark the contract related addresses and usually there are parties who activate token notifications on the telegram bot.