I haven't finished it yet but i absolutely love Harvestella. It's barely a farming sim, more like a Final Fantasy game with farming elements inside it, but I really really enjoyed it.
My favorite of all time is Rune Factory 4. God the amount of time I spent on that game is obscene lmao. I dunno what really makes it unique that I love it so much, maybe the bigger focus on dungeon crawling to go with the farming, but yeah, huge huge fan. Also Forte was so cute.
I didn't like RF5 nearly as much, but I bought it twice (Switch and PC) because it's a miracle it even came out and I wanted to support that. For those who don't know, Neverland Co., the company that developed Rune Factory (and Lufia!) went bankrupt after Rune Factory 4. But then Marvelous hired most of the people on that team, which led to Rune Factory 4 Special, then Rune Factory 5, and now Rune Factory 6 and a spin-off that just got announced! Those sorts of comeback stories make me very happy. I'm really hoping these next two games allow them to refine their 3D engine.