Noob accessories question [$200]

So I just bought my first entry level setup (Gaggia Classic Evo Pro / DF54 grinder) today. Nothing has arrived yet, but should in the next week or so.

What else do I need? I have probably another $150-200 I’m willing to spend on accessories. Does the machine come with a tamper or do I need to buy that separately? Is a scale worth it? I’ve heard a “bottomless portafilter” is a good buy but honestly have no clue what that is lol.

Any other small details I should buy in the meantime to get my setup ready so that I have everything? Thanks in advance!