Well my observation is that alts are becoming decoupled from Bitcoin compared with years ago. Soon I think alts might perform mostly independently of Bitcoin price.

My suggestion is to not buy into niche ICOs but those coins that support decentralized token exchange and/or crosschain tech. This is because a multi-blockchain / tokenized world is becoming more apparent.

Some suggestions:

Ark, Waves, Blocknet, 0x.

Also with high transaction fees of first gen blockchains (Bitcoin especially) projects like Stellar or Ripple will shine when we need to pay for blockchain services. Personally would recommend Stellar as they have major partnerships and it is still quite undervalued.