EOS and ethereum are best coins for investment. So you can go for them. But in my personal opinion, you can also buy Binance Coin, Huobi, Beam, and Bitcoin. These coins are very much good investment for long term. I am sure these coins will never disappoint you.
That's great idea. I also agree with you here. People are looking for a good source to invest their money in different cryptocurrency projects then those are much reliable.