Here are a few offers that I have received. I am a new grad GP located in a metro area in the Midwest so I don’t have a lot of bargaining power. Things might be different for specialists and also location-dependent.
Aspen and Pacific: no non-compete, just non-solicitation
Heartland, location is 1 hour from the city: 25-mile for two years. I understand that is negotiable, but the 25% of collections is non-negotiable, which is ridiculous to me so I didn’t even bother get back to them.
Local DSO in a suburb 25-min from the city: 7 miles for 2 years. I almost signed this contract.
Another smaller local DSO: they initially put 7 miles for 2 years in their contract, but the location is downtown of a major city with a handful of other dental offices within a few blocks so I successfully negotiated down to 3 miles.
I would highly recommend having an attorney look over your contract. A very well-spent $300 for me.