Ive only had brief periods when i haven't had a dog. My dogs have gotten me through some really tough times and its been heartbreaking when having to say the goodbyes, I totally empathise.
I have a mad lurcher now (he was a rescue) and he always cheers me up after a bad day at work
The animal sanctuary i homed him from are doing their Christmas shoebox appeal (donations of food and toys etc), took my donation to them yesterday and went round to say hi to all the dogs. Surprised me to see they were mostly male dogs, only recall seeing one female dog. In that sanctuary they are always looking for volunteers for people to walk or play with the dogs, do various tasks, do the laundry and cuddle time (apparently each dog takes turns coming out to where the laundry is done and have cuddles/interaction) maybe if anyone is feeling lonely or have time on their hands seeing if you have a local animal sanctuary who does something similar might be helpful? Some time out of the house and dogs (or cats if you prefer) always seem to improve things. Good way of getting cuddles too
For anyone missing their dog companions and arent ready for another one just yet, have you thought about 'borrow my doggy'? Kind of like a timeshare of a dog :-) I've not used it but seems like a great idea of the benefit of a dog without the full time commitment :-) xx