Altcoin season has started, you need to build a good portfolio. Who has experience, write your strategies for building a portfolio of promising coins.
There is no altcoin season.
Everything was push up because of the current bitcoin dominance.But about your topic, how to build a portfolio doesn't end up on a fixed set of coins. As long as you think you can profit on that specific coin, that was a good addition to your portfolio.
Aside from BTC, I prefer BTC, ADA, IOST, and some of the low market cap coins.