Though do make sure you are not using stock keyboards such as Gboard, or stuff like Grammarly and SwiftKey which can act as keyloggers or otherwise leak data
I generally use AnySoftKeyboard. OpenBoard is another good choice.
Discussion
It's been two years since ASK received an update. Are you concerned about this?
nostr:nprofile1qythwumn8ghj7un9d3shjtnswf5k6ctv9ehx2ap0qyt8wumn8ghj7etyv4hzumn0wd68ytnvv9hxgtcpz3mhxue69uhhyetvv9ukzcnvv5hx7un89uqzqsmr0gc35903cffmt4s80z4h239vvwdc3ctguu3y4yqdffqjsvvrra847n @ npub1c9d95evcdeatgy6dacats5j5mfw96jcyu79579kg9qm3jtf42xzs07sqfm What keyboards do you use?
There is the OpenBoard fork:
https://github.com/Helium314/openboard
FlorisBoard hasn't had official updates in ages but beta builds are still worked on:
https://github.com/florisboard/florisboard/releases
I know there are others too. Some also use a real keyboard app and disable Network access.