I have an Indian Ringneck and a Red-Collared Lorikeet.
Lorikeets make a terrific companion IMO, but it is a decision that shouldn’t at all be taken lightly considering what comes with owning one. They can be quite demanding — their specific diet needs (flowers, fruit, pollen, and nectar being a few) and diet preparation, they need a lot of one-on-one attention, and they can be messy… their poops are liquid and they can squirt really far, so you have to be prepared to clean at least 4 times as much as what you would with a parrot, they squirt down their cage, all over their toys, perches, etc, and all over the carpet, but that can be managed by putting vinyl under, and around the cage. Besides all that, I will say they are very affectionate, playful, full of energy, funny, clowny, and intelligent. Tookie can get loud, it is a shrill I don’t think everyone could handle, but Tookie only screams and lets out loud shrills a few times during the day. We all adore Tookie, he does have his favorite people here, and not so favorite people, but he is hilarious and so much fun, he dances and talks, he lays on his back and plays with toys, he is pure joy!
Indian Ringnecks are a big favorite of mine, I have had my Indian Ringneck, Keiba, since he was quite young (pretty much a baby, I got him before he weaned) and having had the experience I have had with him I would not look back and I would certainly do it all over again. Indian Ringnecks are another bird that can be demanding, they need lots and lots of one-on-one attention otherwise they can revert back to being wild. They are smart, friendly, playful, and affectionate, depending on their personality, you may come across Indian Ringnecks that are a bit more hands-off than others, this is normal as not every Indian Ringneck is the same. My Indian Ringneck, Keiba, is extremely cuddly and affectionate, he is a big cuddle bug and loves kisses, I couldn’t be happier with him and I definitely recommend an Indian Ringneck, they cop a lot of bad talk, but I beg to differ with a lot of things that have been said about them, and I have even hand-raised Indian Ringnecks that turned out to be lovely and very human friendly. Yes, they can be loud too, I wouldn’t say it is any worse than a Lorikeet though.
I would do plenty of research on each of these species, and if you can, visit a few different Lorikeets and a few different Indian Ringnecks firstly before you make a decision, you may find both of these species are not for you, or one of them may be, and one of them may not be.