Teen Trans girl not really sure what shape I should use or how to figure it out.

So I've been on HRT for a little over a year now, and in the past (a month or two after I started, so when I didn't really have anything there,) I've bought a padded bra or two just to help add some shape under clothing. but most of the time since I was more so buying them for making clothing look a little better on me, they aren't really comfortable and don't fit very well.

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I ordered a push up bra a few days ago after using Google to try and figure out how to find my cup size and strap size, and it seems to fit relatively ok, but towards the top of the cup, there is a little bit of empty space.

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I found this subreddit earlier today and after using the calculator and trying to figure out my shape using the begginers guide, I've been looking through posts to try and guide myself, but I haven't really been able to find any about what bra shape to use guiding others with similar shaped/sized breasts to me.

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The bra specifically that I bought was a 36/B push up plunge bra from M&S online, and when wearing it there is small amounts of space specifically towards the inside top corners of the cups.

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My measurements are:

Loose underbust: 33

Snug underbust: 32

Tight underbust: 30

Standing bust: 35

Leaning bust: 37

Lying bust: 35

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(the calculator puts me at a 32C or 34B with those)

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And for the shape I'm pretty sure I have shallow breasts that are full on the top, and have short roots? (I had a little trouble fully figuring this out though so I might be slightly off)

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They also point outwards a bit idk if that is important but just mentioning it incase it is.

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If anyone could help me figure out what kind of shape would be a good starting point and/or how to know where to go from there it would be greatly appreciated!

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