I can't always charge so what else should I do?

[Eigengrau]

I'm playing an extremely strong 1/2 orc/ogre Scout/Skulking Slayer 7/Weapon Master 1 and it won't be long until I hit level 9. I'm planning on taking 1 more level of Rogue to get Sneak Attacks on my 10ft of movement in a round, and grabbing Cleave for my 9th level feat and Surprise Follow-Through with my 8th level rogue talent.

I'd also like to get in the future Improved Surprise Follow-through, Great Cleave and Cleaving Finish. As well as some of the Advanced Talents for Rogue like Opportunist.

I should at least continue on in Fighter for a few more levels to get another couple feats and Weapon Training for my Earth Breaker. Also pick up some Dueling Gloves.

My thought process on everything is, I've found out that once I charge in and Sneak Attack with an enemy, if he hasn't fallen yet after the big hit, that I'm kinda stuck there and more enemies have been swarming in. My rogue talent Offensive Defense helps sometimes by boosting my AC so I can try and risk the AoO and charge another foe, but I'm not always able to get into position for that.

So with grabbing Cleave/Surprise Follow-Through I'd still have that AC boost coming if I'm stuck with multiple enemies around me. I'd have a better chance of hitting multiple foes using Cleave/S-FT than I would going Full Attack. Plus I'd do more damage.

I've wondered if grabbing more levels of Fighter would be worth it more, versus maybe grabbing some levels of Empyreal Sorcerer/Scarred Witch-Doctor Witch/Warpriest/Inquistor/Cleric for the utility spells and perks some of those classes get?

My Con is 16 and Wis 14 Int 10 and Cha 5. So I'm limited on which classes I could grab for spellcasting. Divine Favor would be nice with my Fate's Favored ability to boost it by another +1, Shield spell for +4 AC, Vanish for a get out of trouble/tactical positioning... healing spells wouldn't hurt either.

I could on the other hand grab the Ninja Trick talent of Ki Pool and then grab the Ninja Vanishing Trick and grab a feat called Extra Ki to help me out with the Invisibility. Also just grab some Wands for extra UMD utility too.

I also would like to find a way to get my Uncanny Dodge and Disable Device ability back.

Just kind of need some direction on what would be the best direction to take my character after level 9.

For what it may be worth, our party consists of a Pirate Rogue(ranged) who has a Warg companion who sometimes flanks for me, Wizard(control/crafter based), Fighter w/no archetype, Barabarian with a mammoth fetish and he hits hard, and 2 characters who never ever seem to show up (Oracle and a Construct Ranger).

My feats are Power Attack, Furious Focus, Bludgeoner, Sap adept, Sap Master, Improved Initiative.

We've been running into Undead quite a lot lately so that kind of drops the damage I'm capable of doing by 1/2.

[Mudfoot]

Cleave is a bit rubbish at higher levels because the opponents get bigger and more mobile, so you're unlikely to get 2 of them together. SFT makes it better, but probably not good enough.

Wis 14 is fine for a cleric, which is never a bad thing (especially if the only other healer is absent). For a start, it'll improve your no-doubt mediocre Will save. Load up on wands and scrolls. Take the obligatory Travel domain for another 10' move. You might find an archetype that trades the other (less useful) domain for something you want.

[Eigengrau]

I think I might skip the spellcaster class until later... I'll just work on getting some potions/scrolls/wands etc... for now.

Next level up will be in Rogue for my Cleave feat and Surprise Follow-Through talent. At level 10 in Rogue (char 11th) I'll grab Weapon Focus feat and retrain my previous weapon training talent into Ki Pool, then for my 10th level feat I'll grab the Ninja Vanishing Trick. Follow that up with Opportunist for my 12th level talent and Cleaving Finish for my 13th level feat.

[Eigengrau]

I screwed up my feats and talents on my character sheet which is actually kind of great for me. I should have had another Rogue talent from 6th level Rogue, which for some reason I had Fate's Favored written down as a talent, but it's one of my starting traits. This now will allow me to take Ki Pool as a talent before my 8th level in Rogue.

Also I should have had these feats in this order:
R1 Sap Adept and 1/2 Ogre feat choice Improved Initiative
R2 Talent Combat Trick gains me Bludgeoner feat
R3 Power Attack
R4 Talent Offensive Defense
R5 Sap Master
R6 Talent Ki Pool
F1 Skipped a fighter feat here at 7th. Furious Focus and Cleave!
R7 nothing gained

So next level coming shortly will gain me the Ninja Vanishing Trick talent and I'll take Surprise Follow-Through as a feat instead of as a talent.

I should now after my level up be able to charge for sneak attack in the 1st round (hopefully), if there is more than 1 enemy grouped up I'll use a swift action to use Vanishing Trick at the end of my charge depending on if the first enemy dropped to my damage or not. If he didn't drop, then I'll Vanish, hoping to get an AoO from the baddies on their turn OR wait to see what they're doing. If they're still thereon 2nd round I can announce Cleave and do the regular hit on 1st guy I had attacked, and my Surprise F-T/Cleave on 2nd guy. Maybe even getting Sneak Attack on the 1st guy again due to being Invisible still.

Really excited for getting Cleaving Finish, Great Cleave and Improved Surprise Follow-Through now.