When most people diversify they just buy more than one coin. This is what I did in the beginning. AboveCrypto is a group I am in, and with their help we came up with a better way to diversify. We broke the crypto world into 5 industries, with coins grouped into these industries. It allows you for a better portfolio diversification.
The AboveCrypto discord group is free and I encourage you to check it out. I have learned a lot in this group.
Here is a link for their group. https://discord.gg/fxkyJRJ
Medium- Mitchell Stulken
YouTube link- https://www.youtube.com/channel/UC6d8acRcK9h7bY_HRRucHhA