Read stories, Going for walks every day, sensory toys/cards, lay her infront of a mirror x
Read stories even if it seems she isn’t listening she will be taking it all in. Try and engage different senses. Put her feet into a small tray of water/jelly/sand. Rattles. My little girl would love me holding things above her head and following them as I moved it slowly. Singing songs is a really good one. Light projectors onto the ceiling/lava lamps. When it comes to toys she’s still at an age where she is reliant on you playing with her. You can get sensory cards from tiktok shop for cheap that have different textures for her to feel. Take her out for a walk so she can see and hear different things. Even if you pop to the coffee shop the smells there will be a new sensory for her. Could do some hand/foot print cards for you to keep or to gift to family
Depends how you feel on screen time but my daughter used to enjoy dancing fruit on YouTube when she was a little bit older
My boy loves having plastic bags shaken over him lol
I got a sensory box from amazon, she isn't really interested in the toys but loves lying on the silver foil blanket and making it crinkle. Also sensory rooms at kids play centres like head over heels, they don't charge for babies and it's like £5 per adult, she loves sitting and looking at all the lights. If the weather's nice we go to the park and lie on the grass, so she can feel the different textures of the grass and leaves, and she watches the trees moving. Most of the time, she falls asleep after about 20 mins but it's a nice change of scenery for me 😂