Hard question to answer without more details, but I've got a bit of general guidance for B2B sales:
* Know your ideal customer (ICP)—or have a decent idea. Find companies that match that profile.
* Find the right people at those companies. Go on Linkedin and find 3-6 people you think could be decision makers at that company.
* Research those people and figure out how your solution might work for them (RHO).
* Reach out to those people. Communicate what you think their pain point might be and how your solution will help them. Try and get them to agree to a discovery call.
* If they are interested, you'll need to figure out who the decision makers are for buying. If the timing is bad, ask when they renew and reach out again 3-6mos to see how their currents solution is treating them. If they aren't interested, DQ them and move on. Guarding your time here is valuable.
I'm assuming you're a founder or early on. The other comments around MEDDPICC, MEDDICC and other sales methodologies are worth a look, but may be over optimizing if you're still trying to win your first deal.
A bit of background—I was one of the first product designers hired at Salesloft. I've spent a decade building software for sellers.