KiCad boards from 3 GitHub repositories tagged “eval-board”, the most starred first; open any of them in PCBKit.
Boardoza/Boardoza_TPS63020_Buck_Boost_Converter_Evaluation_Board
High-efficiency buck-boost converter evaluation board using TI TPS63020, supporting 1.8V–5.5V input and multiple selectable output voltages up to 5V.
WillMatthews/multi-smtpa
Eval board (various interesting layouts) for SMTPA socket ON Semiconductor SiPMs
WillMatthews/sipm-smtpa-vary-anode-resist
single SMTPA eval board mount, with the ability to vary anode resistance if you like