If you are married to a EEA national or you are in a durable relationship with an EEA national, you could apply for a Family Permit Visa, in order to guarantee entry to the UK in this category.
You need to show that you are married to an EEA citizen and they are in the UK/or coming to UK in order to work, study or live in UK as self sufficient in exercising their free movement rights.
If you apply for a Family Permit, you need to show that you are in a genuine relationship with each other and that your EEA Partner is a qualified person in UK.
You would be granted 6 months entry clearance and you can apply for a Residence card upon arriving to the UK.