UltimateWB is an excellent website builder, and also great for SEO. We have achieved first page of Google for target keywords within 1 month.
You can choose from 5 different versions, depending on what features you need. You can compare the 5 versions here: https://www.ultimatewb.com/compare-uwb . We can also help you decide on which version you will need if you provide more info on the type of website you would like to build.
We do have web design packages available here: https://www.ultimatewb.com/pro-services#webdesign . You may also choose to create your own website - we do provide free tech support!