which country are you in?
Which type of life insurance do you want (some cover mortgages, some provide payout for dependants, some mix of both)
Do you want level or decreasing term?
Do you have any cover through work?? (sometimes called death in service cover)
To add to the confusion there are different types of insurance brokers too - execution and advisory. If you were to go the broer route I would strongly recommend the qualified advisor broker, they can typically get discounts and also are aware of which insurers are good for covering people with medical conditions such as T1
I have an excellent Broker near me but I have no idea where you are