Ask HN: Where's your go-to spot to hire web developers?
Tried looking at the common places like fiverr, etc. Only managed to find very basic web developers/developers using wix/squarespace.
If you don't have that experience you engage a web development firm. I suggest asking other business owners in your area to get a short list of reputable companies that can develop a web site for you. Unless developing web sites describes your core business you probably want to hire experts. The people with experience developing non-trivial web sites either work for dev shops or agencies, or for big companies that can maintain such teams and keep them busy, or they freelance.
Upwork, Fiverr, etc. mainly focus on piecework, and attract a lot of let's say more junior people. The global labor market contributes to a race to the bottom mostly based on price and possibly fraudulent reviews and reputation. Experienced freelancers don't use those platforms, at least none that I know about or have worked with.