A few things I may do myself:
1) when I hear the beginning of a build-up + filter, I will prepare a related track (same instrumentation or same vocal range) and have my cue ready. Right before the drop I’ll switch channels and start the drop of the next song, then after the drop hit my cueue for whichever verse I want to come in on.
2) I have cues on returns right after drops that I will beatmatch then transition to. EX:
2 songs I’ve done this with are SMH- Don’t you worry child and Bsharry’s avicii/rihanna mashup (we found your piano on I believe it’s called). When Don’t you worry child is returning after the break, there is a down-filter. Right before the “yellow diamonds in the light” part on the track, there is a down-filter. It makes for a pretty unnoticable transition, other than the change of vocals.
If anything, it really helps to memorize where you set cueues. worst case scenario, while you are djing and you have a song playing out, refresh yourself on the channel not in use and listen to where your cueues are set up on the next song you plan on bringing in. If anything, fill about 1/2 of your set with songs you have memorized, then in-between these songs play your new tracks. I’d really suggest memorizing your tracks to get the most out of your set, but there’s always that banger you find 2-3 hours before a show that just NEEDS to be in your set that night =)