Links
Greek/Hebrew Bible Tools
Look up the Greek and Hebrew words from the Bible and their meanings. Very easy to use even for a novice. One drawback, it's a Protestant website and it uses a Protestant bible, so just be aware of that. Shouldn't be a problem for much of what most people would use the site for.
https://tgm.org/bible-search-tool/
Haydock Bible Commentary
If you're having difficulty understanding a particular verse of scripture, this is one of the best free resources out there.