You can find some more retro keycap profiles if you dig around in various keyboard enthusiast sites, eg https://mechboards.co.uk/products/tex-ada-keycap-set htt

You can find some more retro keycap profiles if you dig around in various keyboard enthusiast sites, eg https://mechboards.co.uk/products/tex-ada-keycap-set https://mechboards.co.uk/products/tex-ada-keycap-set and you can pair them with high force keyswitches such as the Cherry MX grey.