It looks like Apple is secretly preparing a 32” iMac, which could fit your needs: but probably not before next year.
BTW, a question to the experts (I, too, am slowly looking for an Apple Silicon MacBook Air or Pro): is there any advantage, for virtualization, to get 24 (Air) or 32 (Pro) GB of RAM…? Here, I’m thinking more about Windows 12 as a guest, which will probably require 8 GB RAM: which could become 16 GB if nested virtualization will finally become a reality and WSL/WSA is run inside the VM, thus leaving 8 or 16 GB to the host. So RAM is probably best maximized. And what about the M2 Max? Better for virtualization, or similar in VM performance to the M2 Pro?