For the music genres you mention I would strongly advise to NOT buy an arranger keyboard. Even the most recent arranger keyboards are not able to produce decent EDM and sound cheesy. I've made some YouTube video's in the past (and quite recently) in these genres, but the end result is always so-so and far below par compared to the 'real' EDM productions.
Decent style and sound programming for electronic music is somehow not a priority for arranger keyboard manufactures.
Synthesizer Workstations like the Yamaha Motif series and Korg Krome/Kronos can do a much better job in the before mentioned genres and have similar chord recognition functions to an arranger.
Hope this helps.
Best Regards,
Joost