I get a real kick out of hunting down merch, so here’s a thorough route I use when tracking down stuff from 'PAWS OFF MY HEART'. Start with the official channels: check the title's official website or the publisher/author’s shop page. If there's an anime or manga publisher behind it, they often list an official store or licensed partners. Official Twitter/X, Instagram, and the series' page on the publisher site will usually announce drops, preorder windows, and limited edition runs. Those are the items I prioritize because the creators actually get supported.
If official stores come up empty, look at reputable international retailers: sites like the Crunchyroll Store, Right Stuf, and Book Depository sometimes carry licensed goods, while specialty shops like AmiAmi, CDJapan, Mandarake, and Suruga-ya are great for Japanese exclusives or older runs. For overseas-only releases I often use proxy services (Buyee, ZenMarket) so I can bid or buy directly from Japanese shops without worrying about language barriers.
For fan-made items, Etsy, Redbubble, and local convention artist alleys are where designers put their own spin on the series. Just be mindful of whether something is officially licensed — check product descriptions and shop reputations. Secondhand marketplaces like eBay and Mercari are useful for sold-out pieces, but I always inspect seller feedback and photos closely and factor in shipping plus possible customs fees. Personally, I love finding that one little enamel pin at a con or snagging a limited print online; it feels like a small victory and makes me smile every time I wear it.