Learn Hardcore German: Ich wähle heute das günstige Angebot.

Yes. wählen means both choose/select and vote. Here it means choose/select because the object is an Angebot (offer/deal). In political contexts it means vote (e.g., wählen gehen = go vote). It also means dial for phone numbers (eine Nummer wählen).

Why is wähle in the second position?

German main clauses follow the verb-second (V2) rule: the conjugated verb is the second element. In Ich wähle heute …, the first element is Ich and the second is the verb wähle. If you front another element (e.g., Heute), the verb still stays second: Heute wähle ich …

Can I move heute? Does the meaning change?

Yes. All are grammatical; the difference is emphasis:

Ich wähle heute das günstige Angebot. (neutral; today is simply stated)
Heute wähle ich das günstige Angebot. (emphasis on today)
Das günstige Angebot wähle ich heute. (emphasis on the offer; still today)

Just keep the finite verb in second position.

Why is it das and not den?

Because Angebot is neuter. In the accusative, neuter uses das (same as nominative). If it were masculine, you’d see den (e.g., Ich wähle den günstigen Vertrag.).

How do I know das günstige Angebot is in the accusative case?

It’s the direct object of wählen (the thing being chosen). The subject is Ich (nominative). With neuter nouns, nominative and accusative both use das, so here context (the verb’s object) tells you it’s accusative.

What gender and plural does Angebot have?

Gender: neuter (singular: das Angebot)
Plural: die Angebote (e.g., die günstigen Angebote)

Why is the adjective ending -e in günstige?

After a definite article (der/die/das), adjectives take the “weak” ending. Neuter accusative is das günstige Angebot.

With an indefinite article: ein günstiges Angebot
With no article: günstiges Angebot
Plural with definite article: die günstigen Angebote

Is günstig the same as billig?

Not exactly. Both can mean inexpensive, but:

günstig and preiswert suggest good value (positive).
billig can imply cheap in both price and quality (can sound negative).

How do I say “the cheapest offer”?

Use the superlative: das günstigste Angebot. Comparative is günstiger. As an adverb you’d use am günstigsten (e.g., das Angebot, das am günstigsten ist).

Could I use auswählen, nehmen, or mich entscheiden für instead of wählen?

auswählen = select from options; separable: Ich wähle heute das günstigste Angebot aus.
nehmen = take (more colloquial/practical): Ich nehme heute das günstige Angebot.
(mich) entscheiden für = decide in favor of: Ich entscheide mich heute für das günstige Angebot. All are fine; choose based on nuance.

Where does nicht go if I want to negate this?

It depends on what you’re negating:

Not that particular offer (but another): Ich wähle heute nicht das günstige Angebot.
Not choosing any cheap offer: Ich wähle heute kein günstiges Angebot.
Not today (negating time): Ich wähle das günstige Angebot heute nicht.

How do I form a question from this sentence?

Yes/No: Wählst du heute das günstige Angebot?
Wh-question: Welches Angebot wählst du heute? / Wann wählst du das günstige Angebot?
Verb goes first in yes/no questions and second in wh-questions.

How would I say this in the past or future?

Spoken past (Perfekt): Ich habe heute das günstige Angebot gewählt.
Simple past (Präteritum, more written): Ich wählte heute das günstige Angebot.
Future: Ich werde heute das günstige Angebot wählen.
Note: Present + time adverb often expresses near future: Ich wähle heute …

Any quick pronunciation tips?

Ich: the ch is the soft ich-sound [ç].
wähle: w sounds like English v; ä is a long open e ([ɛː]); h lengthens the vowel; final -e is a schwa.
Angebot: stress the first syllable; g is hard [g]; o is long [oː].
Put it together smoothly: [ɪç ˈvɛːlə ˈaŋɡəboːt] (approx.).

Can I drop ich like in Spanish or Italian?

No. German generally requires explicit subject pronouns. You say Ich wähle …, not just Wähle … (unless it’s an imperative).

Why is Angebot capitalized but günstige isn’t?

All nouns are capitalized in German (Angebot). Adjectives are lowercased (günstige) unless they’re used as nouns. Ich is capitalized here only because it begins the sentence; otherwise it’s ich.

Does das here mean “that,” or is it just “the”?

Here it’s the definite article “the.” To say “this offer,” use dieses Angebot; for “that offer,” you might use jenes Angebot (formal/rare) or das Angebot da in speech.

What if I can’t type ä?

Use the standard replacement ae: waehle. Prefer ä in normal writing, but ae is acceptable in contexts like URLs or when the umlaut isn’t available.