At what point you should diversify

Currently approaching the 200k mark with 1 x 3070 and 13 x 3080 and even if ravencoin is my favorite project, I start considering to diversify to reduce any risk so I was wondering at what point you would switch to another coin and which one to pick (and how much you should accumulate before switching again).
Feel free to ask anything you need if this can help pick
PS : I already budget for 3 years cost of power when I bought the GPU so i'm good to not sell anything for at least until 2025