My inbox is full of links and bookmarks for this exact thing, so here’s a compact map I actually use. Start on Pixiv — it’s the mecca for high-res anime-style fanart and many artists upload hi-def pieces there. Use both English and Japanese tags (try 'Vermeil in Gold' and the katakana or full Japanese spelling if you can find it) to catch artists who only tag in Japanese. Bookmark and follow artists so you see new uploads in your feed.
Twitter (now X) and Instagram are great for quick discoveries; search hashtags like #Vermeil or #vermeilfanart, and build a small list or collection to keep track. For more curated, polished work, check ArtStation and DeviantArt where artists often post portfolio-quality pieces and commission info.
Finally, respect artists’ repost rules: if you want prints, look at Booth, Etsy, or the artist’s own shop or Patreon/Ko-fi. I’m always happier when the art I love also supports the person who made it — nothing beats getting a signed print at a con. Happy hunting; I always find a new favorite after one deep-dive session.