Best grinder for delonghi dedica

Ordered the delonghi from Amazon and it's gonna arrived tmr, and im planning to use a unpressurized basket. I already have a timemore c3s which I don't think is that espresso capable and I have a friend coming over from the US. The kingrider K6 is not available on Amazon over there, so will the K2 work? I don't have a big budget so anything near 100 dollars would do. Also how is the timemore c5 esp? I'm down for any other suggestions in this price range, and I usually use medium dark or dark roasts for coffee. Thank you!