ConsoleApp.csproj

<Project Sdk="Microsoft.NET.Sdk">

	<PropertyGroup>
		<OutputType>Exe</OutputType>
		<TargetFramework>net472</TargetFramework>
		<LangVersion>8.0</LangVersion>
	</PropertyGroup>

	<ItemGroup>
		<PackageReference Include="Microsoft.Build.Locator" Version="1.2.6" />
		<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.5.0" />
		<PackageReference Include="Microsoft.CodeAnalysis.VisualBasic.Workspaces" Version="3.5.0" />
		<PackageReference Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="3.5.0" />
	</ItemGroup>

</Project>

Program.cs

using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.Build.Locator;
using Microsoft.CodeAnalysis.MSBuild;

namespace ConsoleApp {
    class Program {
        static async Task Main(string[] args) {
            var visualStudioInstances = MSBuildLocator.QueryVisualStudioInstances().First();
            MSBuildLocator.RegisterInstance(visualStudioInstances);

            using var workspace = MSBuildWorkspace.Create();
            workspace.WorkspaceFailed += (o, e) => Console.WriteLine(e.Diagnostic.Message);

            var solutionPath = args[0];
            var solution = await workspace.OpenSolutionAsync(solutionPath, new ConsoleProgressReporter());
        }

        private class ConsoleProgressReporter : IProgress<ProjectLoadProgress> {
            public void Report(ProjectLoadProgress loadProgress) {
                var projectDisplay = Path.GetFileName(loadProgress.FilePath);
                if (loadProgress.TargetFramework != null) {
                    projectDisplay += $" ({loadProgress.TargetFramework})";
                }

                Console.WriteLine($"{loadProgress.Operation,-15} {loadProgress.ElapsedTime,-15:m\\:ss\\.fffffff} {projectDisplay}");
            }
        }
    }
}