Great question. On NGC 1365 it is very easy to see the two prominent arms.
I don't believe I have seen either of the ones John B recommended but I will now have to go out and look for them because they do look like interesting targets.
If you take your time going for a visual stroll around nearby galaxy clusters (e.g., Virgo, Fornax) under dark skies, you will find galaxies of all kinds. The "boring" elliptical ones are the most common and easiest to pick up visually, but there are plenty of spirals and other shapes. Gravitationally bound tight groupings and ones in the process of collision are always fun too.
You can see a fair bit of detail with an 8" if you take your time and conditions are good. Averted vision is your friend. Takes a bit of getting used to but it's rewarding.
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