what toys should i buy for my baby?

Ma

what do/did you do with your 3 month old all day? I'm a Sahm and I feel like my baby is getting bored with the things we do. he has a few rattle toys that he likes to chew and a TON of stuffed animals. I read to him and show him the pictures and explain what's happening in the pictures but he wants no part in it lol. we do tummy time , he has his swing but I only put him in it if I need to eat or do the dishes or something like that. I sing to him I'm just wondering what others do to keep the days entertaining

update: got him a play mat :) thanks everyone for commenting