Fish to put in my 55 gallon tropical fish tank?

I have 2 neon and 3 platy and I set up my 55 gallon tank, I had a 10 gallon but I upgraded. What fish could I put in my 55 gallon tank? and how many. Thanks guys
Update: I ment 2 guppies and 3 platy, im thinking of getting like 8 neons or more
Update 2: the fish tank has already been set up for like a month, so don't give me this talk about the cycle because I know it by hear
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