Research on Metered Billing Products for Early Stage VC Fund in India

Hello everyone, I am helping an early stage VC fund in India do some research on metered billing products such as orb, metronome, m3ter, amberflo, lago and the likes (this list is not exhaustive, can be some other you use as well). He is keen on speaking to people in RevOps who would have done a vendor evaluation of these companies and/or use one of them. If you are open to a chat please send me a DM. Thank you!