Be creative with T*Square Boards!

https://www.trs-star-shop.com/

Rapid Prototyping with Efinix FPGAs, Measure power consumption on all voltage rails, RISC-V (Sapphire) evaluation, UART to RISC-V, Plenty of extention interfaces:QSE, PMOD, Display (LVDS) etc. AND: Break-Out-On-Board-Programmer