What options does a pre-launch startup have with big retail partnerships and $250K MRR?

An exciting prelaunch startup created by the core engineering team of Priceline (3 engineers: architect, first hires, worked together 15 years, responsible for all assets). The team has got 11 signed contracts representing $250k MRR and 7 more LOIs (not counted in $250k MRR). They need to leverage the contract to raise a bridge for 8-10 months runway to get revenues live. A prelaunch startup has $250k MRR in 18-month signed contracts with huge retailers. They need a bridge. What options are there? Any suggestions on what they could be doing/ who to go…