Look up the boards that use the Lattice ECP5 chips, I think these are the largest FPGAs that have a fully open toolchain: https://github.com/YosysHQ/nextpnr htt

Look up the boards that use the Lattice ECP5 chips, I think these are the largest FPGAs that have a fully open toolchain: https://github.com/YosysHQ/nextpnr https://github.com/YosysHQ/nextpnr You'd need to learn some digital design for any FPGA board. I recommend the book "Digital Design and Computer Architecture" by David and Sarah Harris.