Struggling for business names ideas that are not taken

Hi guys, starting up an online plant shop and really struggling to find the 'perfect' name. As soon as i find one i likje its wither taken or the domain name is taken or soimebosdy ons ths instagram/facebook URL for the name. Having an nightmare!

How important is the name of the company and how important is owning all the domains such as .com/instgram/facebook etc?