Anyone have any transfemme fitness tips?

Background: 23, AMAB. My egg has recently cracked pretty hard after being in denial for a few years so I'd like to take some steps toward presenting more feminine. I'm not sure if I want to transition medically yet; still figuring a lot of things out, am talking to a therapist, and I also feel more attached to/comfortable with my masculinity than most other transgirls. Right now I'm thinking even if I don't pursue hormones I want to establish a boy mode/girl mode thing at the very least (I really like seeing people who can pull off both).

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To that end, I'd like to try and cultivate a more feminine figure. I've been neglecting my fitness lately (lot of big changes in my life outside of my gender) so I want to establish a workout routine again, for health and aesthetic reasons. However, I used to be an offensive lineman and shotput thrower. Thus, most of my gym knowledge concerns bulking up and strength training. Would love some help from you lovely girls with becoming more slender.

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Any pointers or advice would be really appreciated. Routines and specific exercises would be fantastic, but even just some areas to target would be helpful because I have no idea where to even start. Thanks!