If you are US based now or know collaborators who are then the BSSw (Better Scientific Software -https://bssw.io/) Fellowship Program might be of interest – https://bssw.io/blog_posts/applications-open-for-the-2021-bssw-fellowship-program (applications are open for their 2021 Fellowship Program). The progam was originally modelled off the SSI Fellows programme.
Any questions about it – contact the BSSw Fellowship co-ordinator - Hai Ah Nam - This email address is being protected from spambots. You need JavaScript enabled to view it.