Any suggestion for things that we could invest and make money at the same time
You should have first the capital so you can start investing. Trading on popular exchanges is one of the best option you could take. Buying the top 10 or 15 tokens there can be profitable for you. You can also research such tokens so you are assured to trade it.
Top 10 or 15 tokens are good but it does not make your profitable easy.
Projects are for long term, some are hype and some although having a good development already, it has not affect on the price as it lacks hype.
There is no assurance really, but if you are lucky and smart, maybe you can make money, but long term hold is the most effective strategy in trading.