First, Fire Blast does not suck. For a fast, powerful, but frail pokemon like Typhlosion, the extra base power makes the world of difference (ie turning some 2hko's into 1hko's). FireBlast is not a good option for pokemon whose main purporse is to take hits as a wall or transition pokemon, where the increased PP (not accuracy) is a much more important factor.
Second, Focus Punch does not take 2 turns, and can be useful on pokemon with effective move-type coverage (ie poliwrath) who can use it when they come in to force a switch. But yeah sub/punch is the easiest way to use it in most situations
Unnamed (Female Pidgey, bold nature and likes to relax.)
Pidgeot is not very good. If you want a normal/flying pokemon, a staraptor or swellow would be much better choices. Flying pokemon in general, Moltres, Zapdos, Togekiss, Honchkrow or even Crobat or Gliscor can make solid contributions to any team, used correctly. I would suggest reconsidering Pidgeot, but if you want to use it, it's best bet at being useful is an all-out offensive spread:
Pidgeot@Life Orb/Choice Band|Tangled Feet
Adamant!4HP/252Atk/252Spe
Brave Bird
Return
Steel Wing/Roost
Quick Attack/Roost
(do not use roost with a choice band, as being locked into roost is not fun or useful
)
Unnamed (Male Geodude, quiet nature and quick to flee.)
Quiet (+special attack/-speed) is bad for a physically-based pokemon. Golem, however, is a rather mediocre rock-type out of the ones available. tbh, the only thing Golem can do that Tyrannitar or Rhyperior can't do better is explode, so I would consider those as replacements. If you want to keep Golem, I would suggest breeding/recapturing for an adamant one, and either a choce banded or speed boosting set for it.
Choice Band:
Golem@Choice Band|Rock Head
Adamant!4 HP/252 Atk/252 Spe
Earthquake
Stone Edge
Double-Edge
Earthquake
Speed Booster:
Golem@Life Orb|Rock Head
Adamant!252 Atk/4 Def/252 Spe
Earthquake
Rock Slide
Rock Polish
Explosion
But like I said, Golem is cool but by far outclassed by other rock- and ground-type pokemon
Cynder (Female Quilava, quiet nature and impetuous and silly.)
Quiet takes away from one of Typhlosion's greatest assets: speed. Get a modest one to increase it's special attack, or a neutral-natured one (bashful, docile, hardy, quirky or serious) for mixed sets.
Your suggestion of:
"Leftovers and with the moves Fire Blast/Blast Burn, ThunderPunch, Earthquake, and Hidden Power (Ice), Hidden Power (Grass), or Rest."
...is a mixed bag of good and bad ideas. Fire Blast is a good STAB move for Typhlosion, and HPIce and HPGrass can both be very useful, depending on your opponent. The rest is not so good. Leftovers will not benefit such a frail pokemon, and Blast Burn is only ever useful in certain situations (when you know you will die, but will attack first, or when you know you can bag a suprise KO with it). Thunderpunch and Earthquake are useful, but other moves offer better coverage.
A standard Choice Scarf set is Typhlosion's most useful (albeit predictable) set:
Typhlosion@Choice Scarf
modest/[neutral]!4HP/252SpA/252Spe for modest OR 80 Atk/252 SpA/176 Spe for neutral
Eruption
Fire Blast
Focus Blast (modest)/Focus Punch (neutral)
HPGrass/HPRock
the choice of Focus Blast vs Focus Punch is essentially "do I need to beat blissey/chansey?". If no, go modest. If yes, go neutral. HPGrass covers water, ground and rock pokemon, while HPRock covers fire and flying pokemon.
Venom (Female Beedrill, timid nature and mischievous.)
Timid (+speed/-attack) takes away from beedrill's better offense, so an adamant/jolly one would be better. However, Beedrill is the bottom of the barrel for bug-type pokemon. Scizor or Yanmega would pull much more of their own weight. As much as I love Beedrill, it is so bad that against even middling in-game trainers, a beedrill can struggle to do anything. I strongly suggest you consider a replacement.
Bell (Male Bellsprout, modest nature and scatters things often.)
You got a nice natured one ;o Outside of a sunny day based team, a modest Victreebel has only one option that isn't overshadowed by Vileplume or Venusaur - a full-on special attacker:
Victreebel@Life Orb/Leftovers
modest!76 HP/252 SpA/180 Spe
Sludge Bomb
Energy Ball/Grass Knot
HPIce
Sleep Powder
Unnamed (Male Drowzee, jolly nature and strong willed.)
Jolly is bad for Hypno. Hypno also has an issue with some of it's best moves only being available through the NYPC, so if you are playing on a cartridge, this might be an issue. If it is a problem, I suggest replacing Hypno with Grumpig, Gardevoir or Uxie, who can all fill similar roles.
Hypno can manage to so quite a few things well, but the set I like the best is a calm mind/reflect booster:
Hypno@Leftovers|Insomnia
Bold!252HP/252Def/4SpD
Psychic
Calm Mind
Reflect/Shadow Ball
Wish
After few calm minds and with a reflect up, many things that would otherwise walk over hypno will have a hard time breaking it's defenses through the wish recovery. However, dark-type pokemon will ruin this, so shadow ball can replace reflect if you like. Wish is only available via NYPC, so without a cheat cart or w/e it can be difficult to get.
idk I';m tired but your team is very imbalanced and needs a lot of work if you intend to play other people with it. Very common pokemon like Starmie, Heatran and Rotom-W would wipe this team out without much effort at all. Unless you're just playing in-game then fair enough.