As much as I would love it, I think anyone with all of Undertale OST as a source would either dominate the bracket because of a strong/vocal fanbase or get vote-bombed because of how often it already appears on the channel.
In other news, Hat Kid appeared as a bonus character on the mojo, so I'm thinking the team realized how much people wanted her in, so it may/may not lock her in for next year? I hope, at least, Hat in Time's OST is full of bangers, and there aren't a lot of remixes out there beyond Your Contract Has Expired/Rush Hour, as good as those songs are. Glad Jazz Cats supplied with Nyakuza Manholes, at least.
Ahem, back on the topic of Wright, though! I hope L&D at least make Top 2. If Missingno. and them both make it to finals, I'll be happy whatever the result, since the runner-up gets a fusion collab. If L&D doesn't win this year, I think their source list should be broadened to music from their games, music related to mysteries/court cases, and music from other visual novels in general, since "mystery-based games" and "mysteries" kinda overlap. Speaking of DDLC, maybe pair one of them/all of them with Wright and Monokuma for some real chaos. The Mystery Trio/Mystery Club, anyone?