Are you looking to seel health, or life or something else? Many carriers will contract you directly, but depending on the product, you can probably get as good of a contract, with some decent support.
For example, if you use an mga for life, most of the reputable ones are all stacked at about 80-100% for term, with various incentives. If you go direct, you won't get more than that without some serious production, but you get no support.