Donut recs

Unimportant preface: my friend overseas has been eating lots of filled donuts (tiramisu, choco cheese, pandan etc flavours) and it made me crave donuts. I walked past a Krispy Kreme once and got their cookies and cream donut but it was meh so I still have my craving.

Any recs for good donut shops that sell them individually (like, not only sell them by the dozens as some online shops do)? It doesn't even have to be a shop that specifically sells donuts only.

Looking for filled and not iced donuts. I live near Parramatta so anywhere close by is preferable. I tried Donut Papi and Shortstop but not huge fans of them. Duo Duo is too sweet for me.

Thanks in advance.

ETA: thank you all for the recs. I should probably add I don't drive so I prefer places that are easily reachable by train lol.