Google Ads at first for sure. Their search monopoly just means it's the best place for ads on a limited budget.

Moving to Bing is worthwhile once you've started to see efficiency drop off on Google.

LinkedIn is very expensive and really only worth it for highly targeted ads. Bing and LinkedIn have a slight advantage because Microsoft has all the job title/industry data from LinkedIn for its targeting options, but it charges more for use of that targeting essentially.

That means those ads pay off more for Account Based Marketing where you have a salesperson reaching out to high-ranking decision makers and you want your ads to be hitting them in a small audience campaign to back up the cold outreach approach and warm them up before the rep secures a call. So, B2B marketing for big contract based work mainly.

Awesome, thank you!