The Hubble tension is a significant discrepancy between the values of the Hubble constant, $ H_0 $, derived from early-universe observations (primarily the Cosmic Microwave Background, CMB) and late-universe observations (such as local distance measurements and supernova data). The most notable tension is the $ 4\sigma $ to $ 6\sigma $ disagreement between predictions of $ H_0 $ from the early universe in the $ \Lambda $CDM model and late-universe measurements. This tension challenges the $ \Lambda $CDM model and suggests the need for new physics or alternative cosmological models. The review discusses various proposed solutions to the Hubble tension, including early dark energy models, late dark energy models, dark energy models with six degrees of freedom, models with extra relativistic degrees of freedom, models with extra interactions, unified cosmologies, modified gravity, inflationary models, modified recombination history, and other alternative proposals. While some models improve the fit to the data and reduce the tension to within $ 1-2\sigma $, many others fail to resolve the discrepancy, leaving it at $ 3\sigma $ or higher. The tension is not solely due to a change in $ H_0 $, but also due to increased uncertainty from degeneracies with additional physics. The review also presents experimental measurements of $ H_0 $, including those from the Planck satellite, the SH0ES Team, and other local distance measurements. These measurements show a consistent $ H_0 $ value of around 73.2 km s$^{-1}$ Mpc$^{-1}$, which is in tension with the $ \Lambda $CDM prediction of around 67.3 km s$^{-1}$ Mpc$^{-1}$. The review highlights the importance of additional probes to resolve the tension and suggests that solutions involving early or dynamical dark energy, neutrino interactions, interacting cosmologies, primordial magnetic fields, and modified gravity are the most promising options. The review concludes that while no single solution has been found to be highly likely or far better than all others, the tension remains a significant challenge for the $ \Lambda $CDM model and requires further investigation. The review provides a comprehensive overview of the current state of research on the Hubble tension and the various proposed solutions.The Hubble tension is a significant discrepancy between the values of the Hubble constant, $ H_0 $, derived from early-universe observations (primarily the Cosmic Microwave Background, CMB) and late-universe observations (such as local distance measurements and supernova data). The most notable tension is the $ 4\sigma $ to $ 6\sigma $ disagreement between predictions of $ H_0 $ from the early universe in the $ \Lambda $CDM model and late-universe measurements. This tension challenges the $ \Lambda $CDM model and suggests the need for new physics or alternative cosmological models. The review discusses various proposed solutions to the Hubble tension, including early dark energy models, late dark energy models, dark energy models with six degrees of freedom, models with extra relativistic degrees of freedom, models with extra interactions, unified cosmologies, modified gravity, inflationary models, modified recombination history, and other alternative proposals. While some models improve the fit to the data and reduce the tension to within $ 1-2\sigma $, many others fail to resolve the discrepancy, leaving it at $ 3\sigma $ or higher. The tension is not solely due to a change in $ H_0 $, but also due to increased uncertainty from degeneracies with additional physics. The review also presents experimental measurements of $ H_0 $, including those from the Planck satellite, the SH0ES Team, and other local distance measurements. These measurements show a consistent $ H_0 $ value of around 73.2 km s$^{-1}$ Mpc$^{-1}$, which is in tension with the $ \Lambda $CDM prediction of around 67.3 km s$^{-1}$ Mpc$^{-1}$. The review highlights the importance of additional probes to resolve the tension and suggests that solutions involving early or dynamical dark energy, neutrino interactions, interacting cosmologies, primordial magnetic fields, and modified gravity are the most promising options. The review concludes that while no single solution has been found to be highly likely or far better than all others, the tension remains a significant challenge for the $ \Lambda $CDM model and requires further investigation. The review provides a comprehensive overview of the current state of research on the Hubble tension and the various proposed solutions.