Don't go Joja to get closer to Shane. He quits if you marry him. Also, I will always go Community Center because Jojamart ruined the character's life before, and they came to the valley for a fresh start. There's no point in your character repeating the same thing.
Yeah but he quits to help on the farm and work with animals, his true passion. That doesn't mean he's not connected to Joja. I definitely went Joja on my Shane playthrough on the Meadowlands, in my eyes it's perfect.
- I'm focused on raising animals, he loves raising animals.
- I'm associated with Joja, he's associated with Joja
- The farm has blue (the blue grass), he has blue (his outfit choices), Joja has blue
- Most importantly, it gives a logical reason for us to interact.
In my headcanon that character had no ill will towards Joja at all, and really went to Stardew primarily to fulfill the wishes of her grandfather. When she saw she had the opportunity to help out the town, as well as honoring her grandfather's legacy, as well as helping out her first emploer all at once? It was perfect. Just as perfect as Shane. After all, check out this epic romance:
Ahiru had noticed Shane from when she first came into town. She was around him all the time when she was popping into the Joja mart, checking in on things and helping out the town, and she couldn't help but notice him stocking the shelves in there, looking so... mysterious. Then, the great and kind Mr Morris threw a celebration, honoring her for her contributions to the town! None of the other townsfolk attended, but sure enough, standing there among the employees, there was Shane. Their eyes met, and she knew they were destined to be together. She'll never forget the first thing he said to her when she talked to him right after the ceremony: "Why are you talking to me?" What a romantic. He was right, no words were needed. Their bond was unspoken but unmistakable.
When she found out how much he loved beer and pizza, he warmed up to her. As she grew closer, she learned he loved animals and especially egg laying ones just as much as she did! And even better, he had a special connection to a rare breed with their color - the color of her eyes, the color of the grass on her farm, the color he always wore - the color of Joja. It was inevitable, they would be together, Joja-ites in heart and mind, blue chicken loving fools, forever.
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In all seriousness I think it's worth doing a Joja playthrough at least once, and love Joja especially for any challenge runs (Ahiru is cropless, which makes the community center... tough), and especially for the meadowlands / animal focused runs (auto petters are great). Putting all those things together, I could hardly imagine going anything but Joja, and if going Joja on the Meadowlands, I can hardly imagine marrying anyone but Shane. They don't *have* to go together, but they certainly pair up nicely.