I use the iCE40 with 8K LUTs. It's 'old' but the open-source chain is nice, the vendor-supplied chain is fine, and it's 'big enough' to do fairly serious stuff

I use the iCE40 with 8K LUTs. It's 'old' but the open-source chain is nice, the vendor-supplied chain is fine, and it's 'big enough' to do fairly serious stuff. Like the subc compiler I mentioned, the tradeoffs working with an older FPGA like that are ok to me. GL! p.s. I mostly used the TinyFPGA BX to learn about the iCE40, but it doesn't have enough pins to make even a semi-decent full machine (with wide memory bus) so I use the Lattice HX 8K dev board. It's also easy to use.