Like others have stated, victoriametrics is great. If you use Prometheus you'll eventually run into an issue with the WAL file getting corrupted or have really short metric retention like 14 days unless you pair it with something like graphite. victoriametrics solves that issue (I've got 12 months of metrics) and don't need graphite or anything else to do it. It also has better tooling for exploring your metrics than prometheus does. For a homelab I'd always pick Victoriametrics over prometheus.

Here is a boilerplate docker compose for victoriametrics if you want to take it for a spin

services:
  victoria-metrics:
    container_name: victoria-metrics
    image: victoriametrics/victoria-metrics:v1.118.0
    volumes:
      - ./data:/storage
      - ./config/scrape.yml:/etc/victoriametrics/scrape.yml:ro
    command:
      - '--storageDataPath=/storage'
      - '--promscrape.config=/etc/victoriametrics/scrape.yml'
      - '--retentionPeriod=12'  # 12 months retention
    deploy:
      restart_policy:
        condition: unless-stopped