Set Up Subdomains With Linode Ubuntu 18.04 and Apache Web Server (including dns)

Hi,

Sometimes it's hard to locate good information if you don't know what you're looking for. I thought I would just, plain ask the community what the best go to ariticle/s and how to/s for my use case? I hope that's ok.

I need also the instruction to include setting up dns (linode agnostic as well as linode specific).

:~$ ssh $linode
shine@<my-linode-ip-address>'s password: 
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-48-generic
x86_64)

My domain is:

www.bithouz.com

I also need:

www.engage.bithouz.com
www.develop.bithouz.com

My web server is:

~$ apache2 -v
Server version: Apache/2.4.39 (Ubuntu)
Server built:   2019-04-02T20:30:26

The operating system my web server runs on is:

~$ lsb_release -a
No LSB modules are available.
Distributor ID:    Ubuntu
Description:    Ubuntu 18.04.2 LTS
Release:    18.04
Codename:    bionic

~$ uname -r
4.15.0-48-generic

My inclination is to set up a wildcard subdomain as well as wild card certification > through letsencrypt and certbot. But I'll want to configure everything else proper
first.

Thanks in advance for any assistance.

Sincerely,
Jake