The successor of Prisma, Prisma2 [0] does aim to solve the typing issue. It generates a fully typed JS/TS client that you can then use e.g. with autocompletion in VS Code. It is currently in preview, but they aim to release the first "stable" version in Q1 of this year, so pretty soon. You can check the current status at [1]. However, you can try it out right now by installing the preview version via npm.
I am currently playing around with it and although it has some rough edges in corner cases, for 99% of my use cases it was a breeze to work with. Particulary the integration with nexus via the nexus-prisma plugin [2] is plain awesome, i have never had a fully functional graphql endpoint standing in a timeframe of 1 hour.
I am using it in conjunction with NextJS and the resulting developer experience is great, i cant recommend enough to try it out
(I am not affiliated with prisma labs, just a happy user)
[0] https://github.com/prisma/prisma2
[1] https://www.notion.so/Is-Prisma-2-Ready-8b3fba3eaf5b4bf3ab71...