Want to engage with multiple partners safely

Hey. The past few years I’ve noticed that I’ve been getting off on showing myself and my body off to multiple people at once. It’s a thrill thing partly, and I really want to try having sex with multiple people at once, but I’m not sure how to go about this safely. I’m single now so I don’t have to worry about making any partner uncomfortable with this, but also the lack of partner to help facilitate/participate does leave me feeling a bit vulnerable in this quest. Does anyone have ideas on how to find people to engage with safely? I’m fairly reserved irl so I don’t know where to start.