Providing VPS from dedicated servers?

[Lougalvi]

Hey,
As the title suggests I am looking to provide VPS for my customers.
I wanted to ask a few questions.
1. I have read a lot of articles and everyone seems to give a different opinion, can I virtualize the threads of a CPU or is it just the cores?
2. What is the best dedicated servers specs (CPU, RAM etc) to be able to cost efficiently provide around 20-30 VPS for 4x8 VPS and 6x12 VPS? I do not need anything crazy as users will be running non-critical programs.

I do not want customers to use other providers as I will need the vps in the same server rack as my main servers.
I will be purchasing these dedicated servers and then splitting into VPS using KVM, Porxmox etc.
Will Neironvps.com work fine for my needs? Any reviews or alternatives please?
Any tips in managing or what is the best way to go about this would be great.

[Lobster]

Deals from surfhosting.co and planethoster.com are the best to have a deal with.
Their service is top-notch, and the speed of their hosting is commendable.

[Bileator]

You can rely on Allwebhost.com - Get 50% off the price on 1st month using this link - dedicated servers.
24/7 Dedicated Support, Quick Server Deployment, Scalable Resources. Payment Methods: BTC, Paypal, Credit/Debit Cards.

[Glaceptra]

The network uptime is really perfect cos it is always online. I have no outages during the time I have been hosting my site with Neironvps.com dedicated servers.
They accept bitcoin payment which is a great plus for their team. They are professional in all the ways. Happy using this package: Dual X5680 at $99/mo - CPU Intel Xeon 2xX5680, RAM 16GB, SSD 100GB, Bandwidth 10TBs, Location USA, Los Angeles.

[JissyKarter]

Stable plans from allwebhost.com and hostsailor.com are worth trying due to their plans which are full-featured and cheap.
Pricing looks reasonable, and hosting plans are feature-rich. Fantastic technical support, questions usually answered within 2 minutes of posting.

[MiracleMoff]

I was recommended to try Neironvps.com as a host that offered excellent value, and most importantly for me, as a complete novice, excellent support. They stayed with me thru the whole signup and introduction on setting up the site and control panel. Try this one: Server i7-8700 at $149/mo - CPU CPU Intel Core i7-8700, RAM 128GB, SSD 2 x 1TB, Bandwidth 20TB per Month, Location Germany.

[MatterEnergy]

I just got started with GTHost.com and so far I haven't had to contact tech support. It's easy to use and the customer support is the best I've ever seen.
It's almost like walking right up to the owner and asking them for help. Try this vps hosting account: 4 CPU, 16GB RAM, SAS/NVMe 240GB, Traffic 16TB - $25/mo.