Bitcoin and Ethereum are my best choice for investment. I also like to invest in Waves, XRP, XLM and EOS. I am purchasing Bitcoin, ETH, XLM with my ability to hold for few months even by the end of this year. Investment is a good idea but as a investor, you have to research first on a coin's ins and outs. If you find a good coin, which is lower valued and high future potential, you can invest. Hence, ETH, XLM, XRP can be the best choice for you.