I do not recommend Zebstrika at all, especially when you're going to have an Eelektross, which is a much better Electric type. Zebstrika doesn't really have the stats to carry out the moves it's given, and I've found that a lot of people were really hyped for it and ended up disappointed. I'm definitely in that group. Training a Tynamo is a bit difficult until it evolves, but it's so worth it. And way better than Zebstrika. And again, you don't really need two Electric types. Eelektross also has Levitate as an ability, rendering it safe to use against Ground types, unless you're dealing with something that uses Gravity or has a certain ability to negate Eelektross' Levitate.
I would also recommend either scrapping Samurott or Seismitoad. While Seismitoad does have that extra Ground type on it, again, you don't really need two of the same type. I'm personally not a huge fan of Samurott and find it dreadfully boring and would much rather use Seismitoad, but Samurott is still a solid Pokemon and not terrible. Just...not the most interesting or versatile, I've found. Seismitoad gets more to play with and I find it to be better than Samurott.
I think everything else you've selected works fine, but what I pointed out should probably be considered as well. And I should also mention that if you really want to use two of the same types, that's fine. I mean, I'm doing the same in Crystal by using Alakazam and Slowking-- however, it should be noted that they do different things. Slowking is more bulky and also a Water type, Alakazam is fast and hits harder. But the ones that you selected I don't think are different enough from one another (or in the case of your Electric choices, one is MUCH better than the other) to really help you out.
Some other Pokemon to consider are Chandelure, Lilligant (White exclusive, but there is an in-game trade for a Petilil), Whimsicott, Mienshao, Hydreigon, and Haxorus. You don't have any of those types covered in your team, so perhaps you could work something in.
I've already said a lot, so I'll let you take that in, but I'm happy to help with movesets if you still need that! I'm not really the best at that though, but I mean, this is only in-game so I suppose I could be of some assistance...I'm garbage for competitive, haha.