64 cores sounds like the Pioneer [0].
Their Oasis [1] board is going to use SiFive's IP, the main cluster is 12 P P670 cores, and 4 E cores. There are also 8 X280 cores as an "NPU", also RISC-V but with a slightly different ISA.
[0] - https://milkv.io/pioneer
[1] - https://community.milkv.io/t/introducing-the-milk-v-oasis-wi...
The Milk-V Oasis is out, but are you saying there's going to be another revision of that board?
I'm torn between the Lichee (7-node, 28 cores), the Milk (1 node, 64 cores), or the VisionFive 2.
If I was going to build out a lab for shared use across a number of engineers building packages and ci/cd for Linux, what would be the best option now, while we all wait for the hardware to improve in H2/2024?