I am using Namesilo for several years and have no complain about their service.
They do have an online chat option and they reply really quick
How i found Namesilo is an interesting story. I was searching for my first domain name on Godaddy back in 2015. After trying several names i found a name available skypresence.com . Back then i used to have a slow internet connection so the page was not loading properly; i refreshed the page and searched for the domain again and boom the domain was gone.
I became a victim of domain name front running by Godaddy. They stole the domain and sold it to a cloud company 3 months later; this domain still redirect to that company.
Then i searched on Google “why not use godaddy” and it returned with several articles exposing their unethical business practices. After that day i never visited Godaddy again.
After being cheated by Godaddy i was searching for a registrar that do not steal customers’ domain. I researched and found Namesilo was suggested on several forums by domain resellers with big domain portfolios. Since then i always search my domain on Namesilo and they never stole any domain.
I have also used Namecheap they are also good but pricing of Namesilo is better so i prefer them. Namesilo have also better rating than Namecheap and Goddady on Trustpilot (https://www.trustpilot.com/review/www.namesilo.com).
I would suggest use any registrar that fulfill your needs but avoid Godaddy as Polonium-210.