I've only used the bare chips on custom boards, so I have no experience with the eval boards. A popular board a few years ago was the iCEstick for about 20€, b

I've only used the bare chips on custom boards, so I have no experience with the eval boards. A popular board a few years ago was the iCEstick for about 20€, but I can't find it anywhere for that price now. The ICE40 breakout boards from Lattice are also more expensive now for whatever reason. Olimex has a board with the HX8K that is more reasonably priced, but unfortunately doesn't have an onboard programmer... For the ECP5, the ULX3S board looks interesting. It's not exactly cheap, but also has more features than just buttons, LEDs, and pin headers like on the other boards.