You can do it! It just may take a little time. I'd be very honest and clear about it from the beginning about what you are looking for. Whether you are meeting people in bars or clubs, or whether you're looking on dating sites or apps, just be upfront about how you are not looking for sex but looking to date someone who is interested in having a relationship.

You will have lots of people instantly losing interest, which you shouldn't take personally. That's just the guys who only want sex making clear who they are.

There will also be lots of guys who will try to manipulate you into having no-strings-attached sex anyways. They will usually say something like "Okay, no problem, but whatever happens, happens :)" You could try making clear that you will not have sex during the first meetup under any circumstances, no matter how well it goes. That should ward most of those types off.

Make sure to bring across those things as nicely as you can, of course. It's important to be clear about what you are looking for and confident in your goals, but you also don't wanna come across as stern or bitter or demanding.