I want write this friend of mine on dbd but how?

Every few months when 2v8 kicks up. Its a reunion for me. I get to play DBD with a friend were we always link up and find each other. I would love to be able to write them but they are on PC and I am on Ps5.
I dont know what to do. I just want say "Hi!" or "Good game!" or "Its so good to see you again even after every iteration"
Just something :(
Does anyone have any ideas or maybe would anyone be willing to help me?
Answers
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Perhaps stream via Twitch or something and do the whole putting ttv thing in your name in the hopes that they join your stream so you can communicate?
I'm sure there is a much easier way but I'm not sure how you go about finding their steam I'd or whatever without being pc yourself
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How about discord? You can link discord to your ps5 and then you can go in a channel together.
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Could create a steam account and add them as a friend that way. I have many friends on Steam but only play on xbox.
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Great Ideas! Thank you so much!
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