Ready for a relationship...maybe?

Ive been single for almost 2 years but within those years I have (casually) dated a few guys (nothing serious, no titles). My last relationship wasnt a bad one, he just wasnt ready. And recently I thought I was in love with my (ex) best friend but that went allll the way south. I even stopped having sex (and will continue not to have sex). But recently I have been thinking that I really want a relationship, the only thing is, I dont want to waste my time. I feel like some guys just want sex and I'm not interested in that at all. I want to start fresh with someone and although I have guys from my past coming back into my life (on a friend level) i have NO interest in them at all. How do I go about trying to start dating again? Any tips.