Seeking some expert advice on a keyword I found

So I found this keyword by accident and hopefully I may be able to do something with it but or maybe not.

Monthly searches
Monthly searches: 5500 (exact monthly searches)
Keyword difficulty: 40/100
Broad searches difficulty ranges between: 30 - 52
Broad searches per month combined : estimate 40000 searches

Top 10 results
Top 4 results: Pinterest accounts
Rest of search results: Mostly images and some basic info(mainly guides) wording around 1000 words


Domain authority of most websites: around DA25 - 35

Keyword is a seasonal keyword: Traffic spike from March till August

CPC: 0.80

Buyer keywords: Yes ( Amazon sell these products)

Domain availability: Yes (but only with bestxxxxxx in front)

My Question

Will it be wiser to create a brand new website which could take some months to rank even though the exact monthly search results is in the domain name with a buyer extension in front.

Or should I incorporate this keywords in my website with a separate page even though my website is more about eye care which also have some of these keyword phrases I found even though it is something totally different.

Any advice would be appreciated.