i write lol, lmao, haha and use laughing emojis a lot. most of the time it's to indicate "this isn't totally serious" rather than "i am actually laughing out loud in real life" or "this is funny". i would say my most genuine one would be "hahahaha" or something along those lines, i tend to not overuse "hahahaha" (i do, however, overuse "haha"), or even better a keysmash like asjfsddg. it really does depend on who i am talking to, though. a keysmash doesn't have to mean that i'm laughing either, it's more "i'm dead" for any reason. so uh. basically. idk. i'm a fake binch i guess