Hi and welcome!
Please consider getting two guinea pigs! They are group animals and not wired to be on their own.
https://www.theguineapigforum.co.uk/threads/faq-companionship.37654/
https://www.theguineapigforum.co.uk/threads/boars-sows-or-mixed-pairs-babies-or-adults.108944/
If you want mainly cuddly, large piggies, I would also strongly recommend that you look for adult ex-pet piggies from a good rescue; they usually have got piggies of various ages and breeds looking for homes.
Youngsters of all breeds are very active and usually have to learn slowly how to sit still. Guinea pigs have an average life expectancy of up to 7 years, so a hormonally settled two or three year old piggy has still got a good while to live!
Personalities are very individual; there is not really a "breed" personality. Any good rescue will match you up with suitable piggies, even if it means that you may have to look around a bit further or wait a bit considering that you have quite specific requirements! You can also be assured that they piggies you are rehoming are healthy, well bonded and not potentially pregnant.
It would help us if you added your country, state (US/Aus/Can) or general area (UK), so we can give you the approprate advice and recommendations straight away. Click on your username on the top bar, then go to personal details/location. We have got a recommended good rescues locator at the top for our UK members. There are good rescues in other countries, too, and I am in process of compiling a list of them, so you may be lucky to be within reach of one of them.