Based on my own research and input from various key channels on YouTube and Twitter, my portfolio consists of the following altcoins:
Chainlink, Cardano, Zilliqa, Theta, DigiByte, Ren and Kyber Network.
You have researched a lot because the above-mentioned coin is actively increasing their prices in the exchanges, which most of the coins have an active development team and it will surely help your portfolio to increase its value in the coming days easily.