I'd probably reduce the list from 15 to 10

I'd sell off Sumo (it doesn't offer anything new over Monero), and replace it with SpectreCoin, a PoS privacy coin with 5% annual staking rewards, with Tor + obfuscation (works in Tor blocked countries), ring signatures (untraceable transactions), and a roadmap to update the wallet to 1.3.5 over the next few days, followed by mobile wallet, default stealth addresses and stealth staking (crypto first) by Q2 2018.

I'd probably also sell of Oysterl Pearl, as it has increased by multiples very recently, and Opus (I'm not convinced by what they're trying to do)