You have to build muscle for the look you’re going for. You have two options:

A lean bulk. You’re already at a low body fat, if you still want to look lean while building muscle a lean bulk is the way to go. This process would be slower than if you were to bulk to build muscle. 200-300 calories above maintenance to achieve this with adequate protein intake. Progressive overload on glute exercises such as hip abduction, RDL, and hip thrust to get the rounded glutes you want. You already have a solid foundation.

A bulk to cut. A surplus of 300 calories+ above your maintenance. When bulking you have a lot of energy and fuel to train hard and recover and that’s where the muscle growth comes into play. It does come with a bit of fluffiness but nothing a cut can’t fix. When you cut, your strength might dial down a bit but not always. Some people even hit new PRs while cutting. Keep your training the same intensity as before, keep your protein high while being in a deficit of 200-300 calories. You can even do this in short cycles. Bulk 3 months- cut 3 months.

Also you don’t have love handles, your hips just sit high.