The type of music I like to listen to most typically doesn't always have translations readily available. I'm very much an amateur at Japanese even after four years of formal classes so this is mostly for my own benefit than anything. Translation page will be found... here later, when I do end up making it.
Since around April/May of 2023, I've been working with Synthesizer V as my first Vocal synthesis program I've gotten into earnestly. I've been a fan of VOCALOID for more than ten years now, and UTAU was always too difficult for me as a young one, so now I've been happy to play around with Synthesizer V since it is pretty beginner friendly (in my opinion), at least moreso than UTAU!
I recommend Synth V for anyone who has been interested in VOCALOID/UTAU for a while but was always intimidated by it. You can actually download a completely free version you can use forever (with limited capabilities) and download free lite voicebanks to begin with before you decide on comitting to anything. If you scroll all the way to the bottom of this page, you can find a link to download the Basic version of Synth V. Many (but not all) voicebanks have a free lite version that you can use to try them out; the best way to find links to find them is through their Synth V voicebank page on the Synth V wiki.
I upload Synth V covers to my YouTube channel from time to time. Check them out!