You can always consider to this:
Residential = Good for web scrapping, SEO, ad verification - stable connection, decent speed, high anonymity - Medium price
Mobile = Good for Social media accounts, Multiple accounts management - stable connection, high speed, highest anonymity - High Price
Static ISP = Good for long session tasks - most stable connection, highest speed, average anonymity - Medium price - for long lease, the best solution is native static ISP
Datacenter = Good for large data extraction - stable connection, highest speed, low anonymity - Lowest price - nowadays these are getting flagged at the very first deployment - won't recommend anymore - high GB burn, low results