You need think strategically at the moment.
Is it easier for you to get a Tier 2 or to change route?
For Tier 2, you know the drill already and you can find a new sponsor.
For the Tier 1, you have to convince the Endorsement Body. Tech Nation are not operating at the moment and the message displayed on their web page suggests they won't do endorsements in 2020:
They will be operating again in 2021 as the Tier 1 will be also open to EEA nationals.