Position your company where your customers are. If the majority of your customers are cloud adopters, get yourself in the marketplace for AWS, Azure, & GCP (I recommend
tackle.io for getting listed quickly).
Focus on smaller boutique partners who provide a service that complements your technology offering. They will be more agile and will help you get critical feedback early on as to how your product plays with partners and how the structure of your partner program is received.
Wait to go after the bigger partners until you have enough revenue/logos to make them notice you.