The final option is to assign your lease to a third party, which will, of course, depend on you being able to find a third party who wants to take on your lease, which could be more difficult in the current climate. It will also be subject to the provisions in your lease and subject to the landlord’s approval (which usually can’t be unreasonably withheld).
Assignment clauses in commercial leases will often contain a provision which states that the landlord can refuse consent if they think the incoming tenant is not of sufficient financial standing to comply with the covenants in the lease. The provision is something to bear when searching for a third party to take the lease on.
Most leases will require the outgoing tenant to provide an authorised guarantee agreement, which guarantees the incoming tenant’s obligations. You will not be released from future liability under the lease. For example, you may be called on to cover the arrears of the new tenant if they are in default.