I “think” you enjoy this… T61 (256 Gb SSD Debian 10, RAM 4 Gb) and E14 2021 (upgrade with RAM 16 Gb, 1 Tb M.2 for Windows 11 and 256 Gb SSD for Debian 11, all Crucial) : r/thinkpad
What-are-my-options-in-upgrading-my-LENOVO-T540p-Storage-with-SSD - English Community - LENOVO COMMUNITY
IBM Lenovo Thinkpad T60P, T61, T61P, T61U Series Laptop 2.5 Hard Drive/SSD Drive | eBay