How do I get spell correction on Android?

I suck at spelling and would like to know a word I have typed is wrong or not. Ideally with a red underline.

I really struggle looking at text I have written and seeing the mistakes. I have tried Samsung, openboard, gboard. None seem to fix the issue.

I'm willing to download anything as long as it's not a privacy concern. Is there any way to get what I want.

I also asked here. https://lemm.ee/post/30123483