Here's a Hometalk posting for you! https://www.hometalk.com/13721530/how-to-white-wash-brick
Here ya go. Lots of ideas.
Here’s what we did: https://www.frugalfamilytimes.com/2018/06/how-to-make-faux-brick-wall-look-real.html?m=1
We white washed a red brick fireplace by mixing white paint and water but when you brush it on just use a light brush stroke and blend out. The water will make it look washed rather than painted. You can add a second coat or just leave it light with a first coat.