Web hosting companies and in particular wordpress seem to multiply daily. But the services they offer are basically the same.
Below we'll look at what's happening in today's WordPress hosting scene. There are many criteria to choose from, and to name a few: h speed, reliability (up-time), ease of making changes, adding SSL etc, and of course the price. Customer service may not be important to me, but it is very important to others.

Με τον καιρό ενασχόλησης μου στο διαδίκτυο, έχω χρησιμοποιήσει σχεδόν όλες τις hosting εταιρείες, με πάρα πολλές ιστοσελίδες από μικρά ή μεγάλα blogs, online stores, μικρά και μεγάλα forums, portals με πολλά scripts παρακολούθησης/advertisingetc.
Let's look at my experience together. Many hosting providers will not like this post.
Shared Hosting
Away from us… from you… and if possible from everyone. Mars is a lot of money. Web site marketing is booming. The reins have been held by some wicked ones for years. These guys have managed to make a fortune with a highly unacceptable level of service.
1and1, A2, BlueHost, DreamHost, FastComet, Godaddy, Green Geeks, Hostgator, Hostnet, InMotion, InterServer, LiquidWeb. NameCheap, WiredTree, WPMU hosting. Away. In addition to unacceptable services, they make fun of people.

Let's do an experiment with BlueHost (random selection, try the same experiment with other companies from the list above).
Above are the WordPress hosting packages. The Plus package is at 4.89 euros per month with everything unlimited and a domain gift. It's worth it… Let's proceed with the order
Surprise first

The package of 4.89 euros per month is for the purchase of Plus for three years. No dude, I want a month. Let me test if it has something less commitment. I just want to try their service and I want a package for a month.

Unfortunately the smallest package they have is for 12 months and the price from 4.89 euros automatically went to 6.69.
Let's move on

There are also the extras: a total of 144.73 euros per year + 80.29 fine. And it all started with 4.89 euros a month. So clickbait prices and services sucks.
Managed WordPress Hosting
Here the game thickens. The money is even more but at least the services are better than the services of Shared Hosting.
Let's take a look at its price list WPEngine

Scenario: do you have a site with 26.000 unique visitors per month? You will have to pay $ 95.
Of course the price list continues:

Yes, but the services they provide to the end user are worth it. Truth; You probably didn't read a comparison review of inboundnow which proves that a $ 5 package from Linode (unmanaged hosting) is much better in performance than the $ 25 package from WPEngine.
Kinsta? Better but still very expensive.

Regarding Siteground (managed sharing hosting) It is cheaper than WPE and Kinsta but it does not offer the quality of these companies.
Is one of the better low-tier shared hosting and very popular. It has good support.
But the GoGeek package that starts from 11.95 € per month, the renewal automatically becomes 35 euros per month. The SG Optimizer they use does 5 basic things but is not for professionals. If you have a site with few visitors (so with few requirements) they are good.
Their good packages are very expensive (see cloud hosting)
Finally what is the solution?
If you are novice user you will have to compromise with the above companies. Managed WordPress hosting is much more reliable than Shared hosting and has very good support groups. But if you also consider their services very expensive, there are alternatives.

For advanced users or beginners who want to pay a sysadmin (the iGuRu.gr takes over what you need) there are the unmanaged VPS, and of course the Dedicated servers. There are VERY reliable companies with prices that will surprise you. For example:
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Recently iGuRu.gr has switched from Cloud to VPS, and now it is Dedicated (not to Server4you). We have been using Server4you for many years in other projects (it started as a reseller of Leaseweb, but has since expanded) and we find it very reliable.
Caution we do not use affiliate links and that means something.

What is your opinion about siteground (WordPress hosting) and what would you choose comparatively?
SiteGround one of the best low-tier shared hosting and very popular. It has good support. But the GoGeek package starts from 11.95 € per month and the renewal is at 35 per month. The SG Optimizer they use does 5 basic things but is not for professionals. If you have a site with few visitors, they are good.
Their good packages are very expensive (see cloud hosting)
We recommend unmanaged VPS from Dicital Ocean or Server4you or Linode. Much better, cheaper and faster hosting