Ranking for product variants + keyword competition

Hi,

Our products usually have different sizes (ie. 750ml, 1L, 3L, etc.) and we currently have a product page for each size. We are considering consolidating them into a single product page with different size variants so that they are not competing and we can focus building on one page for the main keyword.

An example would be to just have the product page "Jack Daniels" instead of the three different pages "Jack Daniels 700ml", "Jack Daniels 350ml" and "Jack Daniels 1L".

However, I can't get my head around the following two issues.

1. Locally we are currently ranking number 1 "Jack Daniels 1L" with the Jack Daniels 1L single product page. Will we still be able to rank high for "Jack Daniels 1L"? We do have the google product feed listed with merchant center which shows the variations although I don't know if Google Search takes that into account. On the rich snippets the sizes are not visible by default using rankmath seo.

2. We also have a brand page titled "Jack Daniels" which showcases the range of the company's products like JD Honey, JD Fire, gentleman jack, Single barrel, JD Cola, etc. While the content on this page will be different from the product page, it will still be competing with the product page for "Jack Daniels", which is locally still a low competition keyword.

What's the best way to go about this? Is consolidating still a good idea?

I my humble opinion

1. Keep the best page and redirect the rest of the pages to the one which you're going to keep. This way you won't be losing the link juice/page authority etc. In case you have to change the URL of that one page too, since it has 1L mentioned in the URL, then you can redirect all the pages to the new one. It should not impact your rankings, I've tested this multiple times, since you google is already ranking a page, it will continue to do so as it the redirects are an internal matter of your website. In due course search engines would identify the redirects and replace the new page in rankings. Also it will also de index your current page, once you start seeing the new page in google rankings, its a good practice to remove the redirect to avoid unwanted loops.

2. If you have a brand page, best would be to alter the permalink like https://xyz.com/jackdaniels/JDhoney and then have the different size varients put on a particular product page. This way you can avoid making competing brand and product page+give you liberty to create multiple products with different varients on the product page.

Hope that helps.

Thanks
Amit