Looking for friends with benefits near you is different from looking for a partner or a one-off. You want someone close enough to see easily, someone whose company you actually enjoy, and someone who also wants things to stay uncomplicated. Distance matters more than people expect: the best arrangements are the ones that fit into an ordinary week.
A friends-with-benefits setup only survives if it is convenient. If the other person lives an hour away, plans start to feel like a chore and the friendship side fades. Browsing locally means you can meet for a coffee first, see each other on a weeknight, and keep it light.
Some people turn an existing friend into an FWB, which is riskier because you could lose the friendship. Others meet someone new through a site like this and build the friendship around the arrangement. The second route is usually safer for your social circle, and it gives you a clean exit if it stops working.
Whichever route you take, spend a little time talking before meeting in person. If you cannot hold a good conversation, it will not be a good friendship.
Decide what happens if either of you starts seeing someone else, how you will tell each other, and how often you will be in touch between meetups. Writing these down is not necessary. Saying them out loud once, at the start, is.
Yes. Browse by city to see profiles from people in your area, and use the city pages to find the nearest large one.
That is up to the two of you. Agree on it early so neither of you finds out later that the other mentioned it.
Tell the other person promptly. It is better to end an arrangement or change it than to keep going while hoping they will change their mind.