Hi there
Plenty of themes work for that, but one thing that theme creators BS you with, is they dont tell you that to have a serious, convincing agency website you need to:
1) Use less colors, 2 maximum... Look at the big sites and see how many colors they have, does adobe site has 5 colors?... You got what I mean.
2) Do not use transition effects, as they are a distraction... Your website is not there to please and dance and move left and right, but to convince people to buy, those are two different things that 90% of people get wrong.
3) Do not use many images, it's a distraction, focus on text and words that goes straight to the brain, not much bla bla bla.
4) Use plenty of call to action in text and buttons:
a big one in a button above the fold.
One call to action button in the menu.
One call to action at the end of the page.
5) Do not put many links in the menu: the themes that has social media in header are crap, this goes against any marketing rule that exist... So your menu must be clear with just the links you want the visitors to click... Other links like about us, contact us etc, put them in the footer.
Ps: In my company site I use since 2006, there are 3 links, one button in the header, nothing else... then plenty of other ones in the footer.
6) If you want to use a phone number or a skype or telegram for direct contact, pout that as a direct ink in the header...
So to resume, visitor comes, see link option one, link option 2, link option 3 then link to direct contact, no distraction above the fold (in the header).
Just with those simple 6 rules, your website will be more converting than most of agency beginners out there.
I hope this helps.
Cheers.
