My suggestions (only). Up to you to make the final decision. Good luck!
Go for a Voigtlander Perkeo I or II. The best folder around, ever. Pay a little more for the Color Skopar f/3.5. Go minimalist on accessories, a rangefinder (if like me,you find it difficult to estimate distances), a lens hood, and either a UV or a yellow-green filter. You will never, ever look back. Trust me on this one. I did, and I haven't. Mine cost me A$95 plus postage on Ebay. I often see them with the lesser (but almost as good) quality Vaskar, for up to A$250. Those sellers are dreaming... $125-$130, tops.
I've owned Agfas (great lenses, lousy shutters and bellows), Nettars (finding a good one is difficult), and Super Ikontas (OK if you are happy with 11 shots on a 120 roll, also if it breaks down or needs any repairs at all, you will be considerably poorer at the end), and various other ones. The Voigtlander is THE camera. Hidden gems, they are.
For larger walkaround cameras, I went with the Rolleiflex T. Some people peddle a load of verbal garbage about how flimsy they are, pure BS, in my opinion. They are indestructible if you handle them properly, don't hang them around, but use them. The Tessar lenses are great. Few accessories. My T kit has a lens hood, a few filters, and a 16 exposure kit (if you learn to crank the right way, you'll get 17 shots on a 120 roll), a prism (I got it cheap but rarely use it), and a generic brand grip.
My favorite camera now, and my current sweetheart, is the Fuji GA645i with a 60mm (35mm equivelent in '35') lens. I also have a 645wi (28mm equivalent), recently bought, yet to be tested. the 'i' models give you 16 shots to the 120 roll, the older models only 15. A note of caution, be sure to check the electronics carefully before/if you buy, these are not new cameras. Other than a lens hood and a UV, no other accessories needed. Somewhat on the high price side, tho.
The Mamiya RZs produce great results, but remind me of a Graflex camera. I'm not fit enough to want to lug one of those tanks around the streets. End of story for me.
Others will give you plenty of advice, most of it probably accurate. Different strokes for different folks. It all works down to what suits you best.
Don't rush to buy. And be sure to enjoy. Nothing equals the 'high' of shopping for a new camera.
JD in Hobart, Tasmania.