If you want that extra spark of Rolleiflex ownership, none other will do.
I would not shy away from Yashica Mat (before 124G, as price on this one cannot be justified) even, if it is not a Rolleiflex.
Minolta's Autocords can be good, have great lens, but are prone to focusing lever problems and lower priced once have likely already been through related repairs or are no longer as smooth as one would have liked. And that problem is not going away (there are some "stronger" lever replacements to address some of the issues, but strength of the lever is not the sole problem) . These to me are not worth more than half of what they are selling for, because of it. There are other brands with lever focus, try before you buy, it is not a focusing style to everyone's liking.
Mamiya TLR is an entirely different animal. TLR design is the only part that places it in general TLR discussion. You may like it, but don't equate it with any other brand. While most other TLR brands have essentially same handling characteristics (quality of built aside), Mamiya is in a different category. It's not just about larger, heavier, which it is both. Its flexibility compared to typical TLR is unquestionable, but I'm not sure where your heart is for TLR photography, and Mamiya requires a lot more commitment than any other, if it is bought to stay.
Older Mamiyas, C2 and C3, can be had for reasonable money and might be the better way to try them, but once liking that, will lead to at least C220, although C330 is the jump one needs to make to get all they offer. Either way going Mamiya route may end up costing a lot more than even a Rolleiflex due to accessories/lenses available and difficulty of stopping short of owning at least good chunk of them. Mamiya TLR is also not the way to think in a direction of an interchangeable MF camera. There are superior options for that and having lens choice on a TLR is workaround not a feature to parade about.
And TLR experience is also not Mamiya's way. Classic TLR is needed for that, because of lack of Mamiya's options in any one of them. While some brands have produced many accessories for their TLR's, one hardly feels the need for any of them (filters and lens shade aside). Mamiya is the exception. It can be used with nothing but basic set up, but it is difficult to remain uncommitted to more spending.
Classic TLR gives a light set up that can be a joy. It stops short in many situations, but is as capable of great photographs as any.