My PC and mining Primecoin

Hello! I am new to the crypto mining. I have done a lot of research and 99% of people say your computer won’t be able to make up for the loss of power used to mine for coins. I do have access to some free energy. Anyways I have an Intel Core i7 - 4810MQ CPU @ 2.8 GHz max I believe is 3.0 GHz. Installed ram is 16.0 GB. Graphic Card Nvidia 970m

What do you guys think can I mine for coins not just prime coins but other coins effectively and safely without damaging my PC?