In your case, if you do not want to contact freelancers and deal only with professionals to be sure that the result will be of high quality, I would advise you to contact Intexagency. Here https://intexagency.com/services/webdesign/ go here and here you can familiarize yourself with their terms and conditions and other services. My company has been cooperating with them for about a year and I am very satisfied with the results.
In your case, if you do not want to contact freelancers and deal only with professionals to be sure that the result will be of high quality, I would advise you to contact Intexagency. Here https://intexagency.com/services/webdesign/ go here and here you can familiarize yourself with their terms and conditions and other services. My company has been cooperating with them for about a year and I am very satisfied with the results.