HubSpot's marketing automation software has several tools just for this purpose. The first is the HubSpot keyword tool, which allows you to keep track of keywords you're targeting. Once you've done your research and know which keywords are most likely to perform well, you can import those keywords into the tool. The tool will show you how you're currently ranking for those terms and whether your ranking is moving up or down over time.
Customer preference of products is only part of the analysis. There are internal operational factors which can provide a competitive edge as well. Your competitors' products may not have the high quality of yours, but they might offer free delivery; or their employees might be extremely motivated and committed to gaining market share. You need to learn how they are doing on the inside. Some factors to consider:
You need a keen understanding of your ideal customer and the market so that when you launch, your product is positioned correctly in the ecosystem of all products and services. Since competition can come from anywhere, you need to catalog your strengths and weaknesses relative to both direct and indirect category leaders (i.e., those adjacent to your core business).
SEMrush isn't free, but it will give you the comprehensive data you need to make smart decisions about what keywords to target. It's also easy to use. Let's say your company wants to be the first name to show up when someone searches for "solar panel installation." Type that keyword into the Phrase Match tool within SEMrush, and you'll be able to see that term along with other related terms.
The errors in technical SEO are often not obvious, and therefore one of the most popular. Mistakes in robots.txt and 404 pages, pagination and canonical URLs, hreflang tags and 301 redirects, http vs https and www vs non www versions: each of them can seriously spoil all efforts to promote the site. One quality SEO website analysis is enough to solve all the main problems in this part forever.