You will not have the 'right to rent' until you have been issued your spousal visa... and it is illegal for a landlord to put your name on a tenancy agreement if you don't have the right to rent (the landlord can be fined several thousand pounds for renting to someone without a valid visa).
If your husband finds somewhere to rent before you have received your spousal visa, then he can be listed on the tenancy agreement and the landlord can agree (either verbally or in a letter) that you will be able to live there once you have the visa, but you can't be listed as a named tenant on the official paperwork until you have the visa. Once you are in the UK, you will have the 'right to rent' so you can either be added to an existing tenancy agreement (or just move in without being added to it), or you and your husband can start a new tenancy in both names.
So your options are:
- your husband can rent somewhere for both of you, but it must be in his name only... and then you can move in once you arrive in the UK (and be added to the tenancy agreement if the landlord agrees)
or
- wait until you have arrived in the UK and then find somewhere to live together (and both of you can be listed on the tenancy agreement
Having said all that, what evidence did you provide with your spousal visa application to prove you meet the accommodation requirement? When you apply for the spousal visa, you need to prove that you and your sponsor have somewhere suitable to live in the UK once your visa has been granted.
This normally takes the form of:
If your sponsor owns their home:
- evidence that the UK sponsor owns their own house, and you will live there together (the sponsor's Land Registry document and mortgage statement
or
If your sponsor rents their home:
- a valid tenancy agreement in the UK sponsor's name, plus a letter from the landlord giving you permission to move into the property once your visa has been valid and you have the 'right to rent'
or
If you will live with family or friends:
- a letter from a family member or friend giving you permission to live with them in their house once your visa has been granted, along with the their Land Registry document and mortgage statement