Currently, I am playing through Pokemon Heartgold and I'm working on getting through the 8th gym (Clair) and after which I'd like to incorporate the Extreme Speed Dratini into my team. As of right now, my team consists of Gengar, Togetic, Golem, Typholosion, Umbreon, and Quagsire. I was wondering who'd be the best to replace in order to improve my team (so far I've been thinking Golem or Togetic).
Thanks in advance
EDIT 1: It has to be either Togetic or Golem because Umbreon is my wall (only reason why I got through Clair), Gengar is for Psychic, and Ghost coverage (with Embargo to prevent item usage). Typhlosion is the current powerhouse with Ghost, Ice, Grass, Psychic, and Steel coverage, and Quagsire is for Ground, Rock, Ice, Steel, Fire, and Poison coverage