がありそうだ

seems likely to be

→ が
phrase Rare #27,112
seems likely to be Expresses that something seems likely to exist, occur, or be present. Often translated as “there seems to be” or “looks like there is,” depending on context.
JA: 近くに新しい店がありそうだ。
EN: There seems to be a new shop nearby.

ヒーター解決法がありそうだ

There seems to be a way to fix the heater.

— オデッセイ (2015)

何かがありそうだって

I get the feeling there must be some reason behind it.

— 生きる (1952)

彼の失敗は性格と関係がありそうだ

His failure seems to be related to his personality.

何かサプライズがありそうだ

It seems like there might be some kind of surprise.

— スター・トレックII カーンの逆襲 (1982)

都市の人々が田舎移っていくということがありそうだ

It seems likely that people from the cities will move to the countryside.

それは見る価値がありそうだ

That sounds like it’s worth seeing.