This is so challenging. There are so many people making good creative content out there. I'm going to narrow it down to a top 5 list just to save time but there are a lot of other great poketubers out there that I am excited to watch regularly.
1) A joint award to Pimpnite and his partner Lady Krimzen.
Pimp is just this really fun, silly guy. The way he narrates is iconic, "it lives on like one health!" Since I love little cup, its nice to see someone who specializes in lower tiers, he's very crafty with nfes and nu Pokemon. And he's just a very vibrant part of the community who accepts battles with his subscribers every day, host live streams and lovely giveaways of pokemon. You can trade with him, send him letters and just chill. What I live for is his theme teams. Ask him to do something crazy like a full team of bidoof. Meanwhile Krimzen/ Cat is the one who puts it all together with great art and video, she's also a competive battler and has good tutorials, and she's very down-to-earth if you need a break from Pimp's zaniness. They work really well together, and you can feel their chemistry, they make you laugh.
These two have hearts of gold and just raised 1500 dollars that could have gone to their own channel and donated it to causes that support the sick and mentally Ill. Kat especially is awesome because she devotes herself full time to Pimpnite and their channel, while balancing her own KrimzenTV and several others.
2) Tamashi Hiroka- Most versatile of the bunch. She makes rom hacks, gives character analyses, has detailed top 10 lists, presents fanmade content, creepy pasta, explores in-game glitches, gives product reviews, writes essays and more. You may not necessarily agree with her opinions but she is clearly highly intelligent and analytical and it is always worth hearing her input. I considered her for my #1 spot because she offers the most well-rounded, diverse content. I gave the the edge to Pimp though because she uploads not as frequently. I know she has had some medical issues and surgery :(
3) Lockstein and Gnoggin. This channel is a big part of where my research begins. Its so unique with a great deal of focus on pokemon theories and the folklore of gaming world and the real world. There are so many bad fan theories out there that its great to have a real professional out there who always has well-researched content that even incorporates real science. I don't think anyone makes better quality videos than him and I hope that his team is able to keep his channel afloat considering his soaring production costs. If you like what you see on this channel then please donate because they may not be on air much longer if you don't.
4) Candy Evie. She's really adorable and sweet. Her channel is whimsically-colored with cute designs. She has unboxings, shows off her shiny collection, April fool's jokes and now animation and drawing. Hers is the lightest, most kawaii channel. But what really secured her place on my list was the side-by-side comparison of games. She can really help you decide whether you want Heart Gold or Soul Silver this time or Ultra Sun or Ultra Moon next time. She goes beyond telling you which Pokemon are in which game, and breaks down the entire layout of the game without spoilers.
#5) Supreme RK9s. What he is primarily known as is a shiny hunter, which I am not, but he is still interesting to watch. He has great taste and sense of color. He is extremely likeable will hosts intimate Q&A sharing his experiences and overall favorite Pokemon. I would totally want this guy if he weren't already taken by Julian.
It was really hard to cut the list off here. I could have easily expanded this to a top 10 or 20 list, but we would be here all day.