ED25519 keys are what I use. Some people are wary of them because the NSA made some contributions to the algorithmβs development, but I donβt personally see it as an issue. If it bothers you, there are other popular ciphers that are still more secure than RSA.
I do something similar except I have my own cryptic way of writing my passwords that only I understand. I will never trust an outside source with my passwords ever. EVERYTHING gets hacked at some point...