Both Helix3 and SP Page Builder can be translated, because their language layer is based on .ini files. You can also check here: https://www.transifex.com/joomshaper/public/

Guide how to translate phrases from SP Page Builder you will find here: https://www.joomshaper.com/documentation/joomla-extensions/sp-page-builder#documentation-14

Also all other content and labels can be translated, first check on developer site if your native language files are available. For example for HikaShop, AcyMailing etc.