Niche SEO Expert Question

Hi all,

I need help from seo experts please.

Here my case :

I have 2 ideas of niche. Bot are on different topics, but both are useful for webmasters.

My question : should I make one website per theme (so 2 websites), or one website ?
Like : domain.com/topic1 + domain.com/topic2 VS topic1.com + topic2.com

Thing is I don't care to pay 2 domain and host, but to grow 1 website is faster to grow 2 websites. The only positive point I see to create 2 websites is that i'll put…

Niche SEO Expert Question