If you use the Riverlands farm you can give pretty much every adult (everyone who likes artisan goods) iridium quality smoked fish from Week 1. It's the earliest you can produce an iridium-quality universal liked gift, I think. Carp are common and extremely easy to get a perfect catch with! And if you're better at fishing, that gives you more iridium-quality fish to smoke. As a bonus the fish smoker runs quickly, and much like copper bars you can feed and take the machine's outputs while you do something else nearby. I'm not sure how useful smoked fish are as a gift for buying the smoker normally though, or (randomly) getting it from the Prize Machine. I end up phasing out the smoked fish gifting within Year 2 usually, when I'm more reliably giving loved gifts instead of liked ones and have fewer villagers to focus on giving gifts.
Edit: I checked the wiki and Sebastian, Jas, & Vincent are the only exceptions, as the three of them hate artisan goods, with no exception for smoked fish.
