Need to get creative in the bedroom🤯

So my SO and I have pretty good sex, however it’s been getting a little plain for me. We’ve only done the basics, missionary, doggy, and cowgirl, here and there I’ll surprise him by wearing something sexy or “waiting for him in the room” but it’s getting a little repetitive, I can tell he wants to to new things too but he won’t exactly tell me what because I tend to be more shy than him so I want to surprise him with a couple of things???🤔 what has worked for you guys when you want to be spontaneous??ideas?