[[https://www.connectortips.com/|Connector tips]] [[https://syzygyfpga.io/|Syzygy FPGA connector standard]] [[https://www.samtec.com/|Samtec - Expensive high quality connectors]] [[https://www.hirose.com/product/series?lang=en&category=Board-to-Board-Board-to-FPC_Mezzanine-Connection|Hirose]] DF40 series is pretty affordable and low profile [[https://www.tag-connect.com/product-category/products/cables/10-pin-target|TagConnect programming connectors]] [[https://www.we-online.com/catalog/en/em/connectors/wire-to-board/wr-wst_redfit_connector|Würth programming connector]]