SEO keyword research

Hello, i am looking for an SEO expert to do some keyword research in the "Solo Ads" niche for my new platform.

Our platform is called "Cleeko" you can get more details on our site here: https://cleeko.com

We basically need a list of top performing keywords so we can optimize our site.

Here is a list of our competitors websites.
https:udimi.com
https://trafficforme.com
https://soloadsx.com
www.soloadmarketplace.com

Here is some basic keywords you can maybe work off:
Buy solo ads, sell solo ads, buy email solo ad, email solo ads