The roster shows how many different routes lead into this music. Toronto-based ANC3, short for Anime Night Club 3, describes itself as a trio of Canadian brothers combining DJing with live instruments, dance and crowd interaction. Its stated palette reaches from anime and gaming into hip-hop, K-pop, reggaeton, Afrobeats and pop. A listing featuring that group is giving you a more useful clue than the generic word rave.
Kisaki's biography describes another approach: a Korean-Canadian producer, DJ and vocalist with a background arranging Touhou music for Japanese doujin circles, including EastNewSound. Her current description brings rock, J-pop and K-pop influences into midtempo, dubstep and drum and bass. Those details give a prospective listener something concrete to investigate before deciding whether the show fits.
AniParty's DJs offer a different set of reference points. Anime USA's artist profiles describe DJ Appare's interests spanning anisong, tokusatsu, games, VTubers and idols. DJ Smartsteer emphasizes game vocals, Touhou and music associated with NicoNicoDouga. DJ Yuuki also makes room for less prominent series. A niche in one person's library can be exactly the reason another person buys a ticket.
You need not recognize every reference in those biographies. Their value is that they reveal selection: particular people have spent time with particular music. Pick one unfamiliar name, follow an official recording link and listen for a while. That is a better introduction to a community than treating the whole scene as a playlist of the same five famous openings.