You could always go with "I am looking to find a friendly environment where I can enjoy my work and the people I work with." :-)
However, "with whom" is clearly the correct form for your proposed wording.
Whoever suggested "whom with" was smoking dope or something it like.
english.stackexchange.com/users/2490/Hellion
Your second example is correct.
I don't believe I've ever seen "whom with".
english.stackexchange.com/users/3350/Phil Rand
"with whom" is correct, because your dependent clause is "with whom I work", and prepositions (emphasis on pre ) should in most cases introduce a prepositional phrase, except in some cases where it makes the statement seem awkward.
english.stackexchange.com/users/3346/Ryan
(BrE)
Although prescriptivists will lament, in British standard spoken English, I would say neither of these is the norm.
Nearly everyone will say: I am looking to find a friendly environment where I can enjoy my work and the people I work with.
Actually looking to find also sounds pretty formal to me, and enjoying people has certain overtones, so they'd be more likely to say:
I am looking for a friendly environment where I can enjoy my work and the company of the people I work with.
Forget the old 'rule' about not ending a sentence with a preposition.
Churchill killed that one, if it wasn't dead already.
In the UK, whom is now used mostly only in written English, and only after a preposition, so - with whom And this is what virtually all British-published English language courses for foreigners now teach.
You do occasionally hear someone use whom in spoken English, but they stick out like a sore thumb.
Believe me, whom is on the way out.
english.stackexchange.com/users/3323/RandomIdeaEnglish
The "whom with" suggestion might actually refer to the "whom...with" structure, like: I am looking to find a friendly environment where I can enjoy my work and the people whom I work with
english.stackexchange.com/users/24446/fficsori
I've been looking, but I have not come across this 'whom' related question anywhere. Specifically in this circumstance, I feel 'with whom' flows more naturally but I remember someone suggested that 'whom with' is actually the proper order since it is referencing 'the people'   I am looking to find a friendly environment where I can enjoy my work and the people whom with I work.   Or   I am looking to find a friendly environment where I can enjoy my work and the people with whom I work.
"with whom" or "whom with"
english.stackexchange.com
<prepositions><word-order><formality>
english.stackexchange.com/questions/8244
english.stackexchange.com/users/3381/jtrip
"With whom" is the correct phrase because the dependent clause is "with whom I work". The second exampleof the sentence is correct.  One option is: "I am looking to find a friendly environment where I can enjoy my work and the people I work with."   "with whom" is clearly the correct form for your proposed wording.   "Whom with" is not the correct form. Another option is "I am looking for a friendly environment where I can enjoy my work and the company of the people I work with".  "Whom" is being less frequently used or indeed taught in English language courses.
"With whom" is the correct phrase because the dependent clause is "with whom I work". With whom is the correct form.
"With whom" is correct and "whom with" is not used. However, many people would say " I am looking to find a friendly environment where I can enjoy my work and the people I work with". In this case, the second example is the grammatically correct one. However, in reality, it is probably the case that neither example is the most accepted. You may be better off writing "I am looking to find a friendly environment where I can enjoy my work and the people I work with."
One option is: "I am looking to find a friendly environment where I can enjoy my work and the people I work with."  :-)    "with whom" is clearly the correct form for your proposed wording.     "whom with" is not the correct form. second example is correct.   S0: "with whom" is correct, because your dependent clause is "with whom I work", and prepositions (emphasis on  pre ) should in most cases  introduce  a prepositional phrase, except in some cases where it makes the statement seem awkward. Neither is correct. Nearly everyone will say:  I am looking to find a friendly environment where I can enjoy my work and the people I work with.   Actually  looking to find  also sounds pretty formal to me, and  enjoying people  has certain overtones, so they'd be more likely to say:    I am looking for a friendly environment where I can enjoy my work and the company of the people I work with.   Forget the old 'rule' about not ending a sentence with a preposition.  In the UK,  whom  is now used mostly only in written English, and only after a preposition, so  -  with whom  And this is what virtually all British-published English language courses for foreigners now teach.    You do occasionally hear someone use  whom  in spoken English, but they stick out like a sore thumb. Whom  is on the way out.
With whom is the correct form  Whom with is not correct
In reality, the most accepted way of writing this sentence is probably neither option and would be "I am looking to find a friend environment where I can enjoy my work and the people I work with". In this case, the second example is the grammatically correct one.