what strategy, tactics do you recommend for building first 1M arr in saas model? ( more specifically, in web3 space, selling to other web3 infra companies )

I think reverse engineering your sales flow from an existing or targeted ICP is the best starting point. 

I think the highest success rate happens when product, growth, and sales all work in harmony to; ensure pmf, create a compelling narrative and awareness, identify and sell.

Identify Your Target Market, Product-Market Fit, Build a Strong Sales Team,Pricing Strategy,Customer Success,. Partnerships and Referrals, Marketing Strategy,. Measure and Analyze.