An Advanced Guide to Vocaloid Listening by ubnubmaster - my favorite video regarding vocal synth streaming, going into depth with what services work best and what could accommodate the user. great for old and new fans alike
Explaining Vocaloid in under 3 minutes by Rice (with voiceover by VocaCircus) - a good video for people that don't know pretty much Anything about vocaloid and vocal synths as a whole. the title pretty much says all you need to know
(Fall 2022 Update) VOCALOID Song Views Ranking NicoDouga ver. + YouTube ver. by Imo Danshaku - rankings of the most popular vocal synth songs on niconico and youtube as of fall 2022, since it's easier to get into vocaloid through popular content. while the video is in japanese, there are english translations/romanizations for each of the songs and producers shown
Project DIVA and Project SEKAI are equally good places to look for vocal synth music as it's easy to find songs under those titles. go ham
So, you wanna get into VOCALOID - A Beginner's Guide by JOEZCafe - a video that i watched when i was already deep into the vocal synth hole and i still think it remains a pretty good source (besides the last section, where you can watch a better version below). if you want a more in-depth introduction to vocal synths and the culture then this is probably the video for you
So, you wanna get into VSynth Covers (VOCALOID, Synthesizer V & UTAU) - Phonemes, Tuning & More by JOEZCafe - a VERY in depth video about using vocal synth software and making music with it. i haven't watched the entire thing because i'm a lazy fuck, but i find this video very helpful
VocaColle is the biggest online song festival run by niconico regarding vocal synths and is a great place to find new and up-and-coming producers. it also has an app (also run by niconico) with a vocal synth exclusive song ranking and music player. you can get the app on google play here
VocaDB - a database and archive of a shitton of vocal synth music and my personal favorite place to find them. it also has a music player for a lot of the songs they have
Vocaloid Lyrics Wiki - the biggest place to find (translated) lyrics for vocal synth music
"why arent there any good english vocaloid songs" | a vocalsynth playlist by Rice - an extremely good playlist of english vocal synth songs of various genres, styles, musicians, and synths. i recommend you check it out, since english songs and producers often go unappreciated in the fandom